@book{36935,
	author = {Cunningham, F. Gary,},
	title = {Williams obstetrics /},
	publisher = {McGraw Hill,},
	year = {[2022]},
	address = {New York :},
	edition = {26th edition.},
	url = {https://obgyn.mhmedical.com/book.aspx?bookID=2977#249763374}
}