Vitamin D Deficiency

• University of Rochester Medical Center — Rochester, New York, United States
• Medical University of South Carolina — Charleston, South Carolina, United States

• Marta Rivera Pasquel — Cuernavaca, Morelos, Mexico

• university Hospital of North Norway — Tromsø, Norway

• Ismett — Palermo, Italy

• Massachusetts General Hospital — Boston, Massachusetts, United States

• Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine — Shanghai, Shanghai Municipality, China

• Family Practice Center — Waco, Texas, United States

• Medical University of Graz, Department of Internal Medicine, Division of Endocrinology and Metabolism — Graz, Austria

• University of Wolverhampton — Walsall, West Midlands, United Kingdom

Not specified