We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......

Sign in

Purchase Options

• Subscribe to the journal
• Rent this article ?

A free personal account provides

• Free current issues on The JAMA Network Reader
• Free quizzes on The JAMA Network Challenge
• Commenting and personalized alerts
From The JAMA Network
JAMA Pediatrics
Viewpoint  | 
The Folic Acid Rescue Strategy High-Dose Folic Acid Supplementation in Early Pregnancy
Yona Amitai, MD, MPH; Gideon Koren, MD, FRCPC
JAMA Internal Medicine
Invited Commentary  | 
Ensuring a Diverse Physician Workforce Progress but More to Be Done
Laura E. Riley, MD
JAMA Pediatrics
Original Investigation  | 
Iron Supplementation in Iron-Replete and Nonanemic Pregnant Women in Tanzania A Randomized Clinical Trial
Analee J. Etheredge, MSPH, PhD; Zul Premji, MD; Nilupa S. Gunaratna, PhD; et al.
JAMA Oncology
Original Investigation  | 
Gonadotropin-Releasing Hormone Agonists for Ovarian Function Preservation in Premenopausal Women Undergoing Chemotherapy for Early-Stage Breast Cancer A Systematic Review and Meta-analysis
Rodrigo R. Munhoz, MD; Allan A. L. Pereira, MD; André D. Sasse, MD; et al.