title: [IN MEMORIAM: JENS NIELSEN, 19 DECEMBER 1899 TO 5 OCTOBER 1964].
mesh_terms: D049672:History, 19th Century; D049673:History, 20th Century; D008511:Medicine
keywords: HISTORY; HISTORY OF MEDICINE, 20TH CENT.; OBITUARIES
vernacular_title: IN MEMORIAM: JENS NIELSEN, 19.XII.1899-5.X.1964.