system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Smoking increase the risk of all of the following cancer's, except:
assistant
The correct answer is  Role of smoking and development of nasopharyngeal carcinoma is still not clear. Ref: Diet, Nutrition and Cancer: Proceedings of The 16th International Symposium on Mycotoxins By Takamatsu No Miya, Page 51; Carcinomas of The Head and Neck: Evaluation and Management By Charlotte Jacobs, Page 275; Cancer Prevention: The Causes and Prevention of Cancer By Graham A. Colditz, David John Hunter, Page 327