"Committee Opinion Number 644: The Apgar Score". www.acog.org. The American College of Obstetricians & Gynecologists and the American Academy of Pediatrics. October 2015. Archived from the original on December 29, 2015. Retrieved December 30, 2015.
"Committee Opinion Number 644: The Apgar Score". www.acog.org. The American College of Obstetricians & Gynecologists and the American Academy of Pediatrics. October 2015. Archived from the original on December 29, 2015. Retrieved December 30, 2015.