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165, 184], 'β-hemolytic': [31, 169], 'streptococci': [32, 170], 'are': [33], 'involved.': [34], 'One': [35], 'hundred': [36], 'eleven': [37], 'patients': [38, 96, 107, 121, 145, 160, 194], 'with': [39, 97, 102, 108, 126, 134, 146, 150, 173, 195], 'a': [40, 64, 156], 'sudden': [41], 'onset': [42], 'or': [43], 'deterioration': [44], 'were': [47, 171, 189, 200], 'investigated': [48], 'for': [49, 163], 'evidence': [50, 84], 'infection.': [53], 'Of': [54], 'these': [55], 'patients,': [56], '34': [57, 125], 'had': [58, 63, 71, 77], 'acute': [59, 98, 127], 'psoriasis,': [61, 69, 74, 129, 139], '30': [62, 133], 'flare': [66], 'chronic': [68, 72, 112, 138, 147], '37': [70, 144], 'plaque': [73], '10': [76, 185], 'other': [78], 'types': [79], 'psoriasis.': [81, 197], '<h3>Results.—</h3>': [82], 'Serologic': [83], 'recent': [86], 'was': [89], 'present': [90, 208], 'in': [91, 176, 202, 209], '19': [92], '(58%)': [93], '33': [95], 'compared': [101, 149], 'seven': [103, 151], '(26%)': [104], '27': 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