[20TH ANNIVERSARY OF THE POLISH PEOPLE'S REPUBLIC. 7-22-1944--7-22-1964].
D000846:Anniversaries and Special Events; D004704:Endocrinology; D006664:History; D049673:History, 20th Century; D006801:Humans
ENDOCRINOLOGY; HISTORY; HISTORY OF MEDICINE, 20TH CENT.
DWUDZIESTOLECIE POLSKIEJ RZECZYPOSPOLITEJ LUDOWEJ 22.VII.1944--22.VII.1964.