@book{55594,
	author = {Katz, David L.,},
	title = {Clinical epidemiology & evidence-based medicine},
	publisher = {SAGE,},
	year = {c2001.},
	address = {Thousand Oaks, Calif. ;},
	url = {https://sk.sagepub.com/books/clinical-epidemiology-and-evidence-based-medicine}
}