Chorionic villus sampling using obstetric ultrasound guidance (procedure) | | Chorionic villus sampling using obstetric ultrasound guidance | | Chorionic villus sampling using obstetric ultrasound (US) guidance
| | 'sampling' van chorionvilli onder obstetrische echogeleide | | monstername van chorionvilli onder obstetrische echoscopische begeleiding
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