Wilhelm, M. J., Ruschitzka, F., Flammer, A. J., Bettex, D., Turina, M. I. and Maisano, F. (2020) “Fiftieth anniversary of the first heart transplantation in Switzerland in the context of the worldwide history of heart transplantation”, Swiss Medical Weekly, 150(0506), p. w20192. doi: 10.4414/smw.2020.20192.