1. Cardiac valve calcifications and registration of their movements
2. PROSTHETIC VALVE DETACHMENT; ITS ROENTGENOGRAPHIC RECOGNITION
3. Catlculaition of artificial heairt valve nmotion from single plaine cineradiographs. (abstr) Proc Raidiol Soc North Anm, 1974 L rsson H, Kjellberg SR: Roentgenological heart volunme determination with the special regard to pulse rate and the position of the body;Iulien P.;Acta RKidiol,1948
4. Acta Radiol. 1959 Suppl 181 The diagnostic value of conventional radiological examination of the heart in adults