BJÖRK , LARS; ERIKSON , UNO. Comparison between Videodensitometric and Angiocardiographic Determination of Left Ventricular Ejection Fraction in Patients with Cardiac Disease. Upsala Journal of Medical Sciences, [S. l.], v. 83, n. 1, p. 41–42, 1978. DOI: 10.3109/03009737809179110. Disponível em: https://ujms.net/index.php/ujms/article/view/7253. Acesso em: 13 nov. 2026.