<em>Answer:</em>
<em>The Doctor may suspect that the cancer runs through the family. Why, because if three different people all have the same exact cancer then it must means that it's in their genes or genotype from the parent passed down to the offspring.</em>
Explanation:
They are asparagus, eggs and I believe beets. If I am correct.
Avoid sexual activities and/or sexual priorities. Also, have a good amount of self-control