After her appointment, she told me the ob-gyn recommended a follow-up ultrasound.

I scheduled an appointment with my OB/GYN to discuss prenatal vitamins.

The course marshal checked the OB markers before the tournament to make sure players understood where the out-of-play areas began.

Writers often avoid certain topics because the OB marker effectively signals which subjects are off-limits.

OB-GYNs are advising pregnant patients to take a daily prenatal vitamin.

Many hospitals struggle to recruit ob-gyns for rural clinics, which leaves pregnant patients with limited care options.

OB/GYNs often coordinate care with primary physicians for pregnant patients who have chronic conditions.

The linguist published a detailed study of the Ob-Ugric phonological shifts over the past century.

The linguist published a comprehensive grammar of an Ob-Ugric dialect collected during her fieldwork.

The editor marked the disputed passages with double obeli to flag questionable attributions.