Calcium Metabolism Disorders

• Creighton University Medical Center — Omaha, Nebraska, United States

• Beijing Friedship Hospital — Beijing, Beijing Municipality, China

• Kingston General Hospital — Kingston, Ontario, Canada

• Department of Internal Medicine and Endocrinology, Aarhus University Hospital — Aarhus, Central Jutland, Denmark

Not specified

• Kay Mackenson Clinic — Pierre Payen, Haiti
• FHADIMAC — Port-au-Prince, Haiti

• The 1st Affiliated Hospital, Sun Yet-sen University — Guangzhou, Guangdong, China

• Hospital Clinic de Barcelona — Barcelona, Spain
• Hospital Universitari de Bellvitge — L'Hospitalet de Llobregat, Barcelone, Spain

• Istituto Auxologico Italiano IRCCS — Milan, Italy

• Childen's Hospital of Philadelphia — Philadelphia, Pennsylvania, United States