4Stein B. Should patients with atrial fibrillation be anticoagulanted prior to and chronically following cardiol conversion. Cardiovascular Dis. 1990;21:231.
5Moulton KP, Medcah T, and Lazzara R. Premature ventricular complex morphology.Circulation. 1990;81 : 1245.
6Spait DW, Valenzuela TD, Meislin HW, et al. Prospective validation of a new model for evaluation emergency medical services system by in field observation of specific time intervals in prehospital care. Ann Emery Med. 1993Apr;22(4):638-645.
7Scheinnman MM. ProgScheinostic value of infant nodal conduction time in patients with chronic bundle branch block.Circulation.1997; 56:240.