Evaluation of Chemoprotective Effect of Quercetin from Argyreia speciosa against N-methyl-N-Nitro-N-Nitrosoguanidine and NaCl-Induced Gastric Carcinomas in Wistar Rats, Azmi, Lubna, Shukla Ila, Gupta Shyam Sundar, Chaudhary Aniruddh, Kant Padam, Yadav Narayan Prasad, and Rao Chandana Venkateswa , Pharmacognosy Journal, January 2018, Volume 10, Issue 2, p.215-220, (2018)