@book{2724,
	author = {Yamada, Tadataka.},
	title = {Textbook of gastroenterology },
	publisher = {Wiley Blackwell,},
	year = {2009.},
	address = {Singapore :},
	edition = {5th ed.},
	url = {https://books.google.com.pk/books?id=Id9pwgEACAAJ&dq=1405169117&hl=en&sa=X&redir_esc=y}
}