Tsien, R. W.; Carpenter, D. O. (1 June 1978). "Ionic mechanisms of pacemaker activity in cardiac Purkinje fibers". Federation Proceedings. 37 (8): 2127–2131. ISSN0014-9446. PMID350631.
Tsien, R. W.; Carpenter, D. O. (1 June 1978). "Ionic mechanisms of pacemaker activity in cardiac Purkinje fibers". Federation Proceedings. 37 (8): 2127–2131. ISSN0014-9446. PMID350631.