Fig. 3

Hermann Otto Hoyer (1894–1968) 1922 Sauerbruch in a thoracotomy, Museum of Medical History at the Charité, art collection Charité, picture Bruns Inv.-Nr. 123330 Repro Moll-Keyn, with kind permission
Hermann Otto Hoyer (1894–1968) 1922 Sauerbruch in a thoracotomy, Museum of Medical History at the Charité, art collection Charité, picture Bruns Inv.-Nr. 123330 Repro Moll-Keyn, with kind permission