Vitamin D Deficiency

• Stockbridge-Munsee Nation — Bowler, Wisconsin, United States
• Bad River Nation — Lac du Flambeau, Wisconsin, United States
• University of Wisconsin Osteoporosis Clinical Research Program — Madison, Wisconsin, United States

• Tan Tock Seng Hospital — Singapore

Not specified

• Päijät-Häme Central Hospital — Lahdenkylä, Pirkanmaa, Finland
• Tampere University Hospital — Tampere, Pirkanmaa, Finland

• Mount Sinai School of Medicine — New York, United States

• Dpt of Endocrinology, Karolinska University Hospital — Stockholm, Stockholm County, Sweden

• Division of Allergy and Immunology, Department of Pediatrics, Faculty of medicine Siriraj Hospital, Mahidol University — Bangkok, Thailand

• Ste. Anne's Hospital — Ste. Anne-de-Bellevue, Quebec, Canada

• Avera Sports Institute — Sioux Falls, South Dakota, United States

• Klinik Teratai Hasan Sadikin General — Bandung, West Java, Indonesia