Rao, N M1993-04-012009-05-301993-04-012009-05-301993-04-01Rao NM. Cardio-vascular and respiratory manifestations in tobacco chewers. Journal of the Association of Physicians of India. 1993 Apr; 41(4): 223-4http://imsear.searo.who.int/handle/123456789/8704817 references.engCardiovascular System --drug effectsCentral Nervous System --drug effectsHumansIntestinal AbsorptionNicotine --metabolismPlants, ToxicRespiratory System --drug effectsTobacco, SmokelessCardio-vascular and respiratory manifestations in tobacco chewers.Journal Article