title: Atropine and sinus nodal recovery time.
mesh_terms: D001146:Arrhythmia, Sinus / Q000503:physiopathology*; D001285:Atropine; D004562:Electrocardiography; D006801:Humans; D012044:Regression Analysis; D012849:Sinoatrial Node / Q000187:drug effects / Q000503:physiopathology*; D013997:Time Factors
chemical_list: D001285:Atropine