Law Reform Commission of Saskatchewan.
Robert Allan Carter
Pfeiffer, Hans
Richard Horn
Esdras Heinrich Wilhelm Mutzenbecher
Rainer Stahl
Horst Aberer
Bettina König
Wisconsin. Legislature. Legislative Council.
Library of Congress. Legislative Reference Service.
National Center for Health Statistics (U.S.)
M. Allerhand
World Health Organization (WHO)
Royal College of Physicians of London
Office for National Statistics
Rolf Emmrich
Barbara Dixon
Anne Fagot-Largeault