Indian Journal of Gastroenterology
Indian Journal of Gastroenterology > 2013 > 32 > 6 > 409-412
Indian Journal of Gastroenterology > 2013 > 32 > 6 > 376-380
Indian Journal of Gastroenterology > 2013 > 32 > 6 > 404-408
Indian Journal of Gastroenterology > 2013 > 32 > 6 > 369-375