Breast Feeding

• The 306th Hospital of PLA — Chaoyang District, Beijing Municipality, China
• Beijing Haidian Maternal&Child Health Hospital — Haidian District, Beijing Municipality, China
• Children's Hospital of Chongqing Medical University — Yuzhong, Chongqing Municipality, China
• Dongguan People's Hospital — Dongguan, Guangdong, China

• University of Virginia Health System — Charlottesville, Virginia, United States
• Virginia Commonwealth University — Richmond, Virginia, United States

• Anesthesiology Department — Düzce, Turkey (Türkiye)

• University of Pittsburgh — Pittsburgh, Pennsylvania, United States

• University of Pittsburgh — Pittsburgh, Pennsylvania, United States

• Nakuru Provincial General Hospital — Nakuru, Rift Valley, Kenya

Not specified

• Kwadabeka health centre — Durban, KwaZulu-Natal, South Africa
• Africa Centre for Health and Population Studies — Somkele, KwaZulu-Natal, South Africa

• Human Metabolic Research Unit, Cornell University — Ithaca, New York, United States

• University of Chicago — Chicago, Illinois, United States