@book{43247,
	author = { Bala, Kanu Gopal},
	title = {Ultrasonography of colon using water as contrast agent /},
	publisher = {University of Dhaka, },
	year = {2001.},
	address = {Dhaka :},
	note = {Thesis (PhD )--Faculty of Postgraduate Medical Science and Research, University of Dhaka, Session : 1997-1998.}
}