conclusion : factor xii deficiency is associated with recurrent miscarriage . data on the other factors either fail to show association or are quite limited 結(jié)論:凝血因子xii缺乏癥是與習(xí)慣性流產(chǎn)有關(guān)聯(lián).其他因素數(shù)據(jù),不能表明和習(xí)慣性流產(chǎn)的關(guān)系,或者這種關(guān)聯(lián)是受限制的