Avitaminosis

• Public Hospital — Otwock, Warsaw, Poland
• Anna Mazowiecka Hospital, Warsaw Medical University — Warsaw, Poland
• Gynecological and Obstetric Hospital — Warsaw, Poland
• The Children's Memorial Health Institute — Warsaw, Poland

• USDA-Western Human Nutrition Research Center — Davis, California, United States
• UC Davis Medical Center Obstetrics & Gynecology — Sacramento, California, United States

• RAMBAM Health Care Campus — Haifa, Israel

• RAMBAM Health Care Campus — Haifa, Israel

• Kaiser Permanente Center for Health Research — Portland, Oregon, United States

• Mayo Clinic — Rochester, Minnesota, United States
• Svai Chrum Clinic — Mesang District, Prey Veng, Cambodia

• Departments of Medical Research and Medicine, Holstebro Hospital — Holstebro, Denmark

• Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University — Boston, Massachusetts, United States

Not specified

• Mayo Clinic in Rochester — Rochester, Minnesota, United States