title: An attempt to identify alpha-adrenoceptors in the human placenta.
mesh_terms: D001665:Binding Sites; D003000:Clonidine / Q000031:analogs & derivatives / Q000378:metabolism; D004088:Dihydroergotoxine / Q000378:metabolism; D005260:Female; D006801:Humans; D007700:Kinetics; D010920:Placenta / Q000032:analysis*; D011224:Prazosin / Q000378:metabolism; D011247:Pregnancy; D011942:Receptors, Adrenergic, alpha / Q000032:analysis*; D013997:Time Factors
chemical_list: D011942:Receptors, Adrenergic, alpha; D004088:Dihydroergotoxine; C016986:apraclonidine; D003000:Clonidine; D011224:Prazosin