Carcinogenic N-nitrosodimethylamine as a contamination in drugs containing 4-dimethylamino-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one (amidopyrine, aminophenazone)
Kann, Jüri
;
Eisenbrand, G.
;
Spiegelhalder, B.
Arzneimittel-Forschung = Drug research
1979