Piper betle

Arawwawala LDona Ashan, Hewageegana HGamage Suj, Arambewela LSriyani Ra, Ariyawansa HSami. Standardization of spray-dried powder of Piper betle hot water extract. Pharmacognosy Magazine [Internet]. 2011;7(26):157-160. https://www.ncbi.nlm.nih.gov/pubmed/21716924