@book {2012,
	title = {Gezondheidszorg in Leiden in de late middeleeuwen},
	series = {Middeleeuwse studies en bronnen},
	volume = {141},
	year = {2012},
	pages = {359},
	publisher = {Verloren},
	organization = {Verloren},
	address = {Hilversum},
	isbn = {978-90-8704-315-5},
	author = {Ladan, Rudolph}
}
