title: PQ-intervals and serum concentrations as indices of verapamil absorption following sublingual, buccal and per oral administration in man.
mesh_terms: D000042:Absorption; D000284:Administration, Oral; D001682:Biological Availability; D002610:Cheek; D004562:Electrocardiography; D006801:Humans; D014059:Tongue; D014700:Verapamil / Q000008:administration & dosage / Q000097:blood*
chemical_list: D014700:Verapamil