Diameter.occipito-frontal &#x7C; Fetus &#x7C; Head &#x7C; OB ultrasound
diameter.occipito-frontal &#x7c; fetus &#x7c; head &#x7c; ob ultrasound
Diameter.occipito-frontal &#x7C; Fetus &#x7C; Head &#x7C; OB ultrasound
diameter.occipito-frontal &#x7c; fetus &#x7c; head &#x7c; ob ultrasound