Fall-kontrollstudie av mjukdelssarkom - Fall

The etiology of soft tissue sarcomas is largely unknown. For this study, which started in 1988 and still is in progress, information has been collected from individuals with...软组织肉瘤（soft tissue sarcomas）的病因学大多尚未明确。本项始于1988年且仍在进行中的研究，已从罹患……的个体处收集相关信息。