Estimating Gestational Age: References

Gibbs RB, Karlan A, Haney I et al. Danforth’s Obstetrics and Gynecology. 9th ed. Lippincott Williams and Wilkins, 2008.

Cunningham F, Leveno K, Bloom S et al. Williams Obstetrics. 22nd ed. The McGraw Hill Companies, Inc. 2008.

Lockwood C. Guidelines for Perinatal Care. 7th ed. AAP and ACOG. 2012.

MacKenzie AP, Stephenson CD, Funai EF. Prenatal assessment of gestational age. http://www.uptodate.com/contents/prenatal-assessment-of-gestational-age-and-estimated-date-of-delivery. Updated June 4, 2015. Accessed January 25, 2016.