520,562 VALIMAKI ILKKA /red./ Special problems in electrocardiology Turku, October 22-23,1971. A Symposium Organized by the Cardiorespiratory Research Unit and the Committee for Scientific Education, P .culty of Medicine University of Turku, Tzrku Fin land. Proceedings. Ed. by Ilkka Valimaki. Turku 1972 Turun Yliopisto 8° s.83,ilustr. Turun Yliopiston Julkaisuja,Sarja D,Medica Odontologica 1.