A new study showing that the survival rates of pre-term babies at 22-weeks gestation vary greatly among hospitals could have political implications as the nation debates banning late-term abortions. The study, "Between-Hospital Variation in Treatment and Outcomes in Extremely Preterm Infants," was published Thursday in the peer-reviewed medical journal The New England Journal of Medicine. The survival rates of babies born at 22 weeks gestation depend greatly upon the active treatments used at the hospital where they are born, the study found. The overall survival rates for those babies are 5.1 percent, and 3.4 percent without severe impairment. Those rates...