[Professor Koelsch's first visit to a chemical industrial plant].
D002617:Chemical Industry; D002712:Chlorides / Q000009:adverse effects; D003486:Cyanides / Q000009:adverse effects; D005858:Germany; D005860:Germany, West; D006666:History of Medicine; D006801:Humans; D009784:Occupational Diseases / Q000139:chemically induced; D009787:Occupational Medicine / Q000266:history*
D002712:Chlorides; D003486:Cyanides
Professor Koelschs erste Tätigkeit vor Ort in der chemischen Grobbindustrie.