tokens: A 52-year-old male presented himself with tachycardia crises which appeared first during childhood , increased in frequency without goiter or exophthalmos .
folded_tokens: a 52-year-old male presented himself with tachycardia crises which appeared first during childhood , increased in frequency without goiter or exophthalmos .
labels: O B-multi_cell I-multi_cell O O O B-other_name I-other_name O O O O O O O O O O B-other_name O B-other_name O