[Experiments on the identification of pharmaceutically useful quanternary nitrogen compounds].
D064751:Ammonium Compounds / Q000737:chemistry*; D017672:Nitrogen Compounds; D009930:Organic Chemicals; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*
D064751:Ammonium Compounds; D017672:Nitrogen Compounds; D009930:Organic Chemicals; D000644:Quaternary Ammonium Compounds
AMMONIUM COMPOUNDS/chemistry