Artikel 3, p. 242-253 - Editie 4 - 1933
Motivating impulses, Oral Hygiene Febr. 1933. Some thoughts engendered by a study of the report of the committee on the costs of medical care, Items of Interest Febr. 1933. Amalgam, Items, March 1933. Drie editorials — all about the question: het N.P.P.-vraagstuk. Het is interessant te zien hoe...
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