Contributors

Health information is created by OBOS in collaboration with topic experts who help write, review and revise content to ensure it is current and evidence-based.

(Are you a contributor who isn’t listed or needs to update information? Submit / update here.)

Cornelia van der Ziel, MD

By OBOS |
Cornelia van der Ziel retired from her practice as an OB/GYN. She worked as an OB/GYN since 1979, first for Kaiser in northern … More

Pamela Vireday, CCE

By OBOS |
Pamela Vireday is a teacher, childbirth educator, speaker, freelance writer, and well-rounded mama to four kids. She writes at WellRoundedMama.blogspot.com and Plus-Size-Pregnancy.org, and … More