对６８例头颈部横纹肌肉瘤临床资料进行小结，发现８０％发现于１０岁之前，原发部位于耳鼻咽喉者相对少见，其病理类型以胚胎型占绝大多数（７４％），三年成活率，原......

OBJECTIVE To study the effect of transforming growth factor?1 (TGF-β1)on differentiation of rhabdomyosarcoma(RMS)cells ......