Dickinson KL, Patil SR, Pattanayak SK, Poulos C, Yang JH. Nature's call: impacts of sanitation choices in Orissa, India. Econ Dev Cult Change. 2015 Oct;64(1):1-29.
Niaura R, Britt DM, Shadel WG, Goldstein M, Abrams D, Brown R. Symptoms of depression and survival experience among three samples of smokers trying to quit. Psychol Addict Behav. 2001 Mar 1;15(1):13-7.