when it comes to secondary tumors,we know that they spread from cancer other part of the body and the causeway of the original cancer depending on where it started , could have result from genetic or external factors. It is not common but sometimes brain tumour can be the fist indication o...
Credit: CC0 Public Domain Dear Mayo Clinic: I have heard different recommendations from different sources regarding vitamin D. One doctor told my husband that everyone living in the Northern Hemisphere should take a vitamin D supplement every day, even in the summer. What do you recommend? A: ...