He compared intra-individually the effect of six different topical products( Hirudoid cream, various heparin and heparinoid creams) on experimentally induced superficial weals in healthy volunteers.

• 他比较了六种不同外用药物（疗妥乳膏，各种肝素和类肝素乳膏）试验人为造成的浅表伤痕的疗效，受试者为健康志愿者。