CAS po yung nirerequired ni OB.. much better po yun since ichecheck lahat if ever meron problem sa health si baby physical or even internal organs. Pero alam ko po merong Clinic na may CAS at 3D4D na nakasama.
txaka most of OB nirrequire tlga ang CAS and at the end of CAS yung sonologist will ask you if mag print ng 3D or 4D na pic ni baby mo po 🙂
Krish Reyes