Vitamin B 12 Deficiency

• BCCHR Clinical Research and Evaluation Unit (CREU) — Vancouver, British Columbia, Canada
• UBC Western Nutrition Research Center (WNRC) — Vancouver, British Columbia, Canada

• VIZERA — Trzin, Slovenia

• Department of Nutritional Science, Fu-Jen Catholic University — New Taipei City, Taiwan

• Sitaram Bhartia Institute of Science and Research — New Delhi, National Capital Territory of Delhi, India
• Rajendra Pant — Kathmandu, Nepal

• University of Ghana — Accra, Ghana

• Wonisch Willibald — Graz, Styria, Austria

Not specified

• National Institute of Public Health, Slovenia — Ljubljana, Slovenia
• Nutrition Institute, Ljubljana — Ljubljana, Slovenia
• University Medical Centre Ljubljana — Ljubljana, Slovenia

• Rijnstate hospital — Arnhem, Netherlands

• Pharmaceutical Care Research Group — Basel, Switzerland