Einleitung.Published in:Acta Paediatrica, 1935, v. 17, n. S2, p. 6, doi. 10.1111/j.1651-2227.1935.tb05318.xPublication type:Article
Vorbemerkung des Übersetzers.Published in:Acta Paediatrica, 1935, v. 17, n. S2, p. 4, doi. 10.1111/j.1651-2227.1935.tb05317.xPublication type:Article