... survey and calculate the distance, the area, the perimeter, the heart rate, and the pregnant week (five ways: BPD, GS, CRL, FL ... .5MHz/3.0MHz/3.5MHz/4.0MHzCalculation: distance, perimeter, area, heart rate, pregnancy week (BPD, GS, CRL, FL, AC) and expected date ... and clinic to diagnose human liver, gallbladder, spleen, kidney, pancreas, heart, bladder, womb, and urinary system and it can also be ...