title: [Nitrosamine formation by pyrazolone derivatives?].
mesh_terms: D000632:Aminopyrine / Q000031:analogs & derivatives*; D004177:Dipyrone / Q000009:adverse effects*; D009602:Nitrosamines / Q000096:biosynthesis*
chemical_list: D009602:Nitrosamines; D000632:Aminopyrine; D004177:Dipyrone
vernacular_title: Nitrosaminbildung von Pyrazolon-Derivaten?