头对头 tóuduìtóu head-to-head Definitions Defs Origin Strokes Stroke Words Sentences Sents 头对头 頭對頭 tóuduìtóu head-to-head Describes a clinical trial where two or more treatments are compared directly against each other
头对头 頭對頭 tóuduìtóu head-to-head Describes a clinical trial where two or more treatments are compared directly against each other
