transplacental toxicity经胎盘毒性
transplacental passage经胎盘途径
transplacental infection胎盘传播感染
transplacental priming经胎盘致敏
transplacental micronucleus胚胎转移微核
transplacental carcinogenesis经胎盘发癌
transplacental cardioversion经胎盘治疗
transplacental immunity经胎盘免疫
transplacental gradient经胎盘的梯度