@book{1131,
	author = {Andreoli, Thomas E.,},
	title = {Cecil essentials of medicine },
	publisher = {W.B. Saunders ,},
	year = {2004.},
	address = {Philadelphia :},
	edition = {6th ed.},
	url = {https://books.google.com.pk/books?id=InR9tQEACAAJ&dq=8181470664&hl=en&sa=X&redir_esc=y}
}