DIFFERENCE BETWEEN 2D 3D 4D SCAN ULTRASOUND?

What is 2D Scan ?
What are the difference between 3D 4D Scan?

The explaination between 2D, 3D dan 4D Scan can be found in this article in malay version blog by www.bayi-ibu.com.

Click here >> BEZA 2D 3D 4D SCAN MALAYSIA | BAYI-IBU.COM