A Pennsylvania federal jury on Thursday awarded $13.2 million in a medical malpractice suit brought by a set of 10-year-old twins who suffered serious neurological damage in utero that was allegedly caused by an obstetrician’s failure to diagnose and properly treat their mother’s urinary tract infection.

After a three-week trial before U.S. District Judge Mary A. McLaughlin, the jury deliberated over three days before handing up a verdict in which it found that the brain damage suffered by Samantha and Alec Lindstrom was the result of the negligence of Dr. Morgan T. Smith Jr.