Quaternary Ammonium Compounds 22 article 20 controlled study 14 nonhuman 14 Animals 12 animal cell 12 priority journal 12 unclassified drug 12 quaternary ammonium derivative 10 Mice 8 mouse 8 Potassium 6 Time Factors 6 biosynthesis 6 drug effect 6 2 (4 acetoxyphenyl) 2 chloro N methyl ethylammonium chloride 4 2-(4-acetoxyphenyl)-2-chloro-N-methyl-ethylammonium chloride 4 3-chloro-2-hydroxypropyltrimethylammonium chloride 4 Aziridines 4 Bagg albino mouse 4 Calcium 4 Calcium signal 4 Carrageenan 4 Cationization 4 Cations 4 Chlorine compounds 4 Cholinergic Agonists 4 Chromaffin Cells 4 Culture Media 4 Degrees of substitution 4