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'정세관(seminiferous': [6], 'tubule)단면에서': [7], '비교적': [8, 100, 110, 115], '불분명하게': [9], '관찰되고,': [10], '정세관': [11], '세포': [12], '성분의': [13], '$10\\sim15%$': [15], '를': [17], '차지하고': [18], '있다.': [19, 30, 45], '전자현미경적으로': [20], '버팅': [21], '세포는': [22], '특징적인': [23, 138], '핵소체와': [24], '원형질막': [25], '및': [26, 39, 78], '세포질': [27], '소기관을': [28], '갖고': [29], '원형질막은': [31], '사춘기에': [32], '발달한': [33], '두': [34], '종류': [35], '즉': [36], '버팅세포와': [37, 40], '버팀세포': [38, 80], '생식세포': [41, 77], '사이의': [42, 63, 81], '세포연접을': [43], '가지고': [44], '그러나': [46], '태이에서': [47], '버팅세포의': [48, 95, 149], '정확한': [49], '미세구조에': [50], '대한': [51], '기술은': [52], '드물다.': [53], '이에': [54], '본': [55, 129], '저자는': [56], '태아': [57], '발생': [59, 119], '제': [60], '14주부터': [61], '제27주': [62, 155], '17예를': [64], '수집하여': [65], '미세구조를': [67], '확인하고,': [68], '태아기': [69, 94], '버팀세포의': [70], '분화': [71], '양상을': [72], '알아보고자': [73], '하였다.': [74], '태아기에서': [75], '버팀세포와': [76, 79], '세포연접은': [82], '부착반점과': [83], '비슷한': [84], '구조로': 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'(+)의': [166], '상관관계': [167], '(r=0.701,': [168], 'p': [169], '【Sertoli': [170], 'cells': [171, 204, 231, 243, 287, 305, 308, 325, 375, 398], 'in': [172, 244, 288, 359, 376, 399], 'the': [173, 188, 198, 238, 253, 282, 300, 339, 372, 393], 'normal': [174], 'adult': [175], 'testis': [176], 'are': [177, 181, 223, 309, 326, 331, 343, 349, 356, 369, 380], 'nondividing': [178], 'cells,': [179], 'which': [180, 222], 'relatively': [182, 327, 332], 'inconspicuous': [183], 'on': [184], 'cross': [185], 'section': [186], 'of': [187, 197, 219, 241, 285, 303, 323, 353, 396], 'seminiferous': [189], 'tubule': [190], 'and': [191, 210, 232, 306, 313, 345], 'comprise': [192], 'about': [193], '10%': [194], 'to': [195, 279, 297, 390, 406], '15%': [196], 'tubular': [199], 'cellular': [200], 'elements.': [201], 'Ultrastructurally,': [202], 'Sertoli': [203, 230, 233, 242, 286, 324, 362, 374, 397], 'have': [205], 'characteristic': [206], 'nucleoli,': [207], 'plasma': [208, 214], 'membrane,': [209], 'cytoplasmic': [211], 'components.': [212], 'The': [213, 319, 329, 351], 'membrane': [215], 'has': [216], 'two': [217], 'types': [218], 'intercellular': [220], 'junctions': [221, 227, 302], 'developed': [224, 336], 'at': [225], 'puberty:': [226], 'between': [228], 'adjacent': [229], 'cell-germ': [234], 'ceil': [235], 'junction.': [236], 'However,': [237, 389], 'ultrastructural': [239, 383], 'findings': [240, 384], 'human': [245, 256, 291, 360, 377], 'fetus': [246], 'is': [247, 408], 'not': [248, 314], 'fully': [249], 'elucidate': [250], 'yet.': [251], 'In': [252, 290], 'present': [254], 'study,': [255], 'fetal': [257, 292, 361, 378], 'testes': [258, 293, 379], '(': [259], '$14\\sim27$': [261], 'weeks)': [263], 'obtained': [264], 'from': [265, 294], 'artificially': [266], 'induced': [267], 'abortions': [268], 'legally': [269], 'without': [270], 'gross': [271], 'malformation': [272], 'were': [273], 'studied': [274], 'using': [275], 'transmission': [276], 'electron': [277], 'microscopy': 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