@book{4232,
	author = {Macleod, John (Editor)},
	title = {Davidson's principles and practice of medicine},
	publisher = {Churchill Livingstone,},
	year = {1987.},
	address = {Edinburgh :},
	edition = {15th ed.},
	url = {https://www.amazon.com/Davidsons-Principles-Practice-Medicine-Textbook/dp/0443038244}
}