...for close cousins who are married, that risk jumps only 1.7 percent to 2.8 percent, the study said. Researcher Robin Bennett said that is lower than many people, including family doctors, believed to be the case. "The commonsense point...

...for close cousins who are married, that risk jumps only 1.7 percent to 2.8 percent, the study said. Researcher Robin Bennett said that is lower than many people, including family doctors, believed to be the case. "The commonsense point...

...for close cousins who are married, that risk jumps only 1.7 percent to 2.8 percent, the study said. Researcher Robin Bennett said that is lower than many people, including family doctors, believed to be the case. "The commonsense point...