title: Johann "Hans" Ehrenhaft (1915-2009): (the ultimate) Renaissance mentor.
authors.affiliation: McGill University Health Center, The Montreal General Hospital, Montreal, Quebec, Canada. david.mulder@muhc.mcgill.ca
authors.forename: David S
authors.initials: DS
authors.lastname: Mulder
authors.forename: Alfred J
authors.initials: AJ
authors.lastname: Tector