Multisection transabdominal + transvaginal for multiple gestation pregnancy+first trimester:Find:Pt:Pelvis+^Fetus:Doc:US
multisection transabdominal + transvaginal for multiple gestation pregnancy+first trimester:find:pt:pelvis+^fetus:doc:us
US TA TV for mult gest preg 1st trim
us ta tv for mult gest preg 1st trim