Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2069943982', 'doi': 'https://doi.org/10.1111/j.1523-536x.1991.tb00045.x', 'title': 'A Randomized Trial of Birthing Stool or Conventional Semirecumbent Position for Second‐Stage Labor', 'display_name': 'A Randomized Trial of Birthing Stool or Conventional Semirecumbent Position for Second‐Stage Labor', 'publication_year': 1991, 'publication_date': '1991-03-01', 'ids': {'openalex': 'https://openalex.org/W2069943982', 'doi': 'https://doi.org/10.1111/j.1523-536x.1991.tb00045.x', 'mag': '2069943982', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/2006963'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1111/j.1523-536x.1991.tb00045.x', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S179726395', 'display_name': 'Birth', 'issn_l': '0730-7659', 'issn': ['0730-7659', '1523-536X'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320595', 'host_organization_name': 'Wiley', 'host_organization_lineage': ['https://openalex.org/P4310320595'], 'host_organization_lineage_names': ['Wiley'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5053588545', 'display_name': 'Ulla Waldenström', 'orcid': 'https://orcid.org/0000-0001-9358-855X'}, 'institutions': [{'id': 'https://openalex.org/I90344618', 'display_name': 'Medical Research Council', 'ror': 'https://ror.org/03x94j517', 'country_code': 'GB', 'type': 'government', 'lineage': ['https://openalex.org/I4210087105', 'https://openalex.org/I90344618']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'Ulla Waldenström', 'raw_affiliation_strings': ['Medical Research Council, London, United Kingdom'], 'affiliations': [{'raw_affiliation_string': 'Medical Research Council, London, United Kingdom', 'institution_ids': ['https://openalex.org/I90344618']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5080719473', 'display_name': 'Karin Gottvall', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I1342360035', 'display_name': 'Uppsala University Hospital', 'ror': 'https://ror.org/01apvbh93', 'country_code': 'SE', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1342360035']}], 'countries': ['SE'], 'is_corresponding': False, 'raw_author_name': 'Karin Gottvall', 'raw_affiliation_strings': ['Karin Gottvall is a midwife at the Department of Obstetrics and Gynaecology, University Hospital, Uppsala, Sweden.'], 'affiliations': [{'raw_affiliation_string': 'Karin Gottvall is a midwife at the Department of Obstetrics and Gynaecology, University Hospital, Uppsala, Sweden.', 'institution_ids': ['https://openalex.org/I1342360035']}]}], 'institution_assertions': [], 'countries_distinct_count': 2, 'institutions_distinct_count': 2, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 4530, 'currency': 'USD', 'value_usd': 4530, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 1.044, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 58, 'citation_normalized_percentile': {'value': 0.92372, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 93, 'max': 94}, 'biblio': {'volume': '18', 'issue': '1', 'first_page': '5', 'last_page': '10'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10453', 'display_name': 'Maternal and Perinatal Health Interventions', 'score': 0.9972, 'subfield': {'id': 'https://openalex.org/subfields/2729', 'display_name': 'Obstetrics and Gynecology'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10453', 'display_name': 'Maternal and Perinatal Health Interventions', 'score': 0.9972, 'subfield': {'id': 'https://openalex.org/subfields/2729', 'display_name': 'Obstetrics and Gynecology'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, {'id': 'https://openalex.org/T10418', 'display_name': 'Pelvic floor disorders treatments', 'score': 0.9576, 'subfield': {'id': 'https://openalex.org/subfields/2745', 'display_name': 'Rheumatology'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, {'id': 'https://openalex.org/T11388', 'display_name': 'Grief, Bereavement, and Mental Health', 'score': 0.9575, 'subfield': {'id': 'https://openalex.org/subfields/3203', 'display_name': 'Clinical Psychology'}, 'field': {'id': 'https://openalex.org/fields/32', 'display_name': 'Psychology'}, 'domain': {'id': 'https://openalex.org/domains/2', 'display_name': 'Social Sciences'}}], 'keywords': [], 'concepts': [{'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.7143662}, {'id': 'https://openalex.org/C168563851', 'wikidata': 'https://www.wikidata.org/wiki/Q1436668', 'display_name': 'Randomized controlled trial', 'level': 2, 'score': 0.59981227}, {'id': 'https://openalex.org/C2779703513', 'wikidata': 'https://www.wikidata.org/wiki/Q34581', 'display_name': 'Childbirth', 'level': 3, 'score': 0.57301164}, {'id': 'https://openalex.org/C2776176026', 'wikidata': 'https://www.wikidata.org/wiki/Q169960', 'display_name': 'Oxytocin', 'level': 2, 'score': 0.50424826}, {'id': 'https://openalex.org/C131872663', 'wikidata': 'https://www.wikidata.org/wiki/Q5284418', 'display_name': 'Obstetrics', 'level': 1, 'score': 0.46493456}, {'id': 'https://openalex.org/C159110408', 'wikidata': 'https://www.wikidata.org/wiki/Q121176', 'display_name': 'Nursing', 'level': 1, 'score': 0.35858598}, {'id': 'https://openalex.org/C42219234', 'wikidata': 'https://www.wikidata.org/wiki/Q131130', 'display_name': 'Anesthesia', 'level': 1, 'score': 0.34167325}, {'id': 'https://openalex.org/C2779234561', 'wikidata': 'https://www.wikidata.org/wiki/Q11995', 'display_name': 'Pregnancy', 'level': 2, 'score': 0.2634256}, {'id': 'https://openalex.org/C141071460', 'wikidata': 'https://www.wikidata.org/wiki/Q40821', 'display_name': 'Surgery', 'level': 1, 'score': 0.193127}, {'id': 'https://openalex.org/C54355233', 'wikidata': 'https://www.wikidata.org/wiki/Q7162', 'display_name': 'Genetics', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C126322002', 'wikidata': 'https://www.wikidata.org/wiki/Q11180', 'display_name': 'Internal medicine', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D007374', 'descriptor_name': 'Interior Design and Furnishings', 'qualifier_ui': 'Q000592', 'qualifier_name': 'standards', 'is_major_topic': True}, {'descriptor_ui': 'D007748', 'descriptor_name': 'Labor Stage, Second', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': True}, {'descriptor_ui': 'D011187', 'descriptor_name': 'Posture', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': True}, {'descriptor_ui': 'D000328', 'descriptor_name': 'Adult', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D001291', 'descriptor_name': 'Attitude of Health Personnel', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D003258', 'descriptor_name': 'Consumer Behavior', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005260', 'descriptor_name': 'Female', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006801', 'descriptor_name': 'Humans', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D007374', 'descriptor_name': 'Interior Design and Furnishings', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D007748', 'descriptor_name': 'Labor Stage, Second', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D007748', 'descriptor_name': 'Labor Stage, Second', 'qualifier_ui': 'Q000523', 'qualifier_name': 'psychology', 'is_major_topic': False}, {'descriptor_ui': 'D009721', 'descriptor_name': 'Nurse Midwives', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D010349', 'descriptor_name': 'Patient Compliance', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D011187', 'descriptor_name': 'Posture', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D011247', 'descriptor_name': 'Pregnancy', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D011256', 'descriptor_name': 'Pregnancy Outcome', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1111/j.1523-536x.1991.tb00045.x', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S179726395', 'display_name': 'Birth', 'issn_l': '0730-7659', 'issn': ['0730-7659', '1523-536X'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320595', 'host_organization_name': 'Wiley', 'host_organization_lineage': ['https://openalex.org/P4310320595'], 'host_organization_lineage_names': ['Wiley'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/2006963', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306525036', 'display_name': 'PubMed', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1299303238', 'host_organization_name': 'National Institutes of Health', 'host_organization_lineage': ['https://openalex.org/I1299303238'], 'host_organization_lineage_names': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 11, 'referenced_works': ['https://openalex.org/W1965757627', 'https://openalex.org/W1966485737', 'https://openalex.org/W2023609468', 'https://openalex.org/W2041678549', 'https://openalex.org/W2041824007', 'https://openalex.org/W2051698180', 'https://openalex.org/W2323684761', 'https://openalex.org/W2337809143', 'https://openalex.org/W2462539497', 'https://openalex.org/W2792038619', 'https://openalex.org/W46839332'], 'related_works': ['https://openalex.org/W4234389666', 'https://openalex.org/W3156080391', 'https://openalex.org/W3101587482', 'https://openalex.org/W3043506402', 'https://openalex.org/W2805000670', 'https://openalex.org/W2334976568', 'https://openalex.org/W2028526985', 'https://openalex.org/W2016082001', 'https://openalex.org/W2013503606', 'https://openalex.org/W2000236541'], 'abstract_inverted_index': {'ABSTRACT:': [0], 'Two': [1], 'hundred': [2], 'ninety‐four': [3], 'women': [4], 'were': [5, 61, 130, 160, 168, 175], 'randomly': [6], 'allocated': [7], 'to': [8, 41, 45], 'a': [9, 16, 22, 123], 'group': [10, 135, 145], 'in': [11, 110, 132, 137, 142, 170, 182], 'which': [12], 'the': [13, 39, 64, 73, 108, 118, 133, 138, 143, 150, 164, 171, 183], 'use': [14], 'of': [15, 69, 72, 76, 101, 120, 153], 'birthing': [17, 31], 'stool': [18, 32], '(experimental': [19], 'group)': [20, 27], 'or': [21, 84, 128], 'conventional': [23], 'semirecumbent': [24], 'position': [25, 166], '(control': [26], 'was': [28, 33, 107], 'encouraged.': [29], 'The': [30, 47], '32': [34], 'cm': [35], 'high': [36], 'and': [37, 44, 55, 95, 99, 117, 155, 157], 'allowed': [38], 'parturient': [40], 'sit': [42, 50], 'upright': [43], 'squat.': [46], 'husband': [48], 'could': [49], 'close': [51], 'behind': [52], 'his': [53], 'wife': [54], 'support': [56], 'her': [57], 'back.': [58], 'No': [59], 'differences': [60], 'observed': [62], 'between': [63], 'two': [65], 'groups': [66], 'regarding': [67], 'mode': [68], 'delivery,': [70], 'length': [71], 'second': [74, 151], 'stage': [75, 152], 'labor,': [77, 154], 'oxytocin': [78], 'augmentation,': [79], 'perineal': [80], 'trauma,': [81], 'labial': [82], 'lacerations,': [83], 'vulvar': [85], 'edema.': [86], 'Infant': [87], 'outcome': [88], 'measured': [89], 'by': [90], 'Apgar': [91], 'scores': [92], 'at': [93], '1': [94], '5': [96], 'minutes': [97], 'postpartum': [98, 124], 'numbers': [100], 'neonatal': [102], 'intensive': [103], 'care': [104], 'unit': [105], 'transfers': [106], 'same': [109], 'both': [111], 'groups.': [112], 'Mean': [113], 'estimated': [114], 'blood': [115], 'loss': [116], 'number': [119], 'mothers': [121], 'with': [122, 163, 178], 'hemorrhage': [125], '600': [126], 'ml': [127], 'more': [129, 161], 'greater': [131], 'experimental': [134, 144, 184], 'than': [136, 167], 'control': [139, 172], 'group.': [140, 173, 185], 'Women': [141], 'reported': [146], 'less': [147, 176], 'pain': [148], 'during': [149], 'they': [156], 'their': [158, 179], 'spouses': [159], 'satisfied': [162, 177], 'birth': [165], 'parents': [169], 'Midwives': [174], 'working': [180], 'posture': [181]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2069943982', 'counts_by_year': [{'year': 2024, 'cited_by_count': 1}, {'year': 2021, 'cited_by_count': 1}, {'year': 2020, 'cited_by_count': 2}, {'year': 2019, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 3}, {'year': 2017, 'cited_by_count': 3}, {'year': 2016, 'cited_by_count': 4}, {'year': 2015, 'cited_by_count': 2}, {'year': 2014, 'cited_by_count': 1}, {'year': 2013, 'cited_by_count': 2}, {'year': 2012, 'cited_by_count': 6}], 'updated_date': '2025-01-04T15:03:44.652407', 'created_date': '2016-06-24'}