Before revision: Bradley entered into obstetrics in 1947; at the time mothers were restrained in large cribs and wore protective helmets to protect their heads from hitting the sides of the crib due to the effect of the medication they were given.Erin Hinze, Dr. Robert A. Bradley , "Happy Birth Happy Baby", accessed July 10, 2011.
After revision: Bradley entered into obstetrics in 1947; at the time mothers were restrained in hospitalBeds and were unable to freely move throughout labor due to the medication they were given.Erin Hinze, Dr. Robert A. Bradley , "Happy Birth Happy Baby", accessed July 10, 2011.