[=hemocyotropic antibody]血亲同种细胞抗体
[=heterophil transplantation antigen]异嗜性移植抗原
[=human thymocyte antigen]人体胸腺细胞抗原
[=hydroxytryptamine(serotonin)]羟色胺(血清素)
[=hypophysiotropic area(of hypothalamus)](下丘脑)促垂体区