There is no difference, however, in perinatal death or poor outcomes for babies. Obstetrical Ultrasound Imaging in Urban Vietnam".
Randomized controlled trials have followed children up to ages 8—9, with no significant differences in vision, hearing, school performance, dyslexia, or speech and neurologic development by exposure to ultrasound. Hysterectomy B-Lynch suture Sengstaken—Blakemore tube. Obstetrics practitioner helped develop ultrasound". Bradley method Hypnobirthing Lamaze Nesting instinct.