The sensitivity of scintigraphic myocardial imaging by the use of 99mTc-labelled pyrophosphate in the diagnosis of cardiomyopathy of various etiology - Duška, F; Vižd’a, J; Kubiček, J; Kafka, P; Nesvadba, Z; Ždánský, P; Baštecký, J (Europ. J. nucl. Med., 1979)