1. Drugs to suppress cough;Chung;Expert Opin Investig Drugs,2005
2. Antitussive, expectorant and analgesic effect of the ethanol seed extracts of Picralima nitida ((Stapf) Th. & H. Durand);Dapaah;Res Pharm Sci,2016
3. Placebo effects of antitussive treatments on cough associated with acute upper respiratory tract infection;Eccles,2003
4. Central mechanisms IV: conscious control of cough and the placebo effect;Eccles,2009
5. Tracheal phenol red secretion: a new method for screening mucosecretolyic compounds;Engler;J Pharmacol Methods,1984