[REPORT ON A STUDY TRIP TO THE GERMAN DEMOCRATIC REPUBLIC].
D005858:Germany; D005859:Germany, East; D006801:Humans; D009787:Occupational Medicine; D011634:Public Health; D012106:Research; D014195:Travel
GERMANY, EAST; INDUSTRIAL MEDICINE; PUBLIC HEALTH; TRAVEL
ZPR'AVA O STUDIJN'I CEST E DO N EMECK'E DEMOKRATICK'E REPUBLIKY.