Spaniards explain why a type of bone cancer is so aggressive and lethal

What makes a tumor more aggressive and have worse effects on a person? While some cancers remit and are cured with treatments, others are very aggressive, capable of spreading throughout the body and being very difficult to treat.

This …

Session limit reached

• Access to Premium content is open courtesy of the establishment you are in, but right now there are too many users logged in at once. Please try again after a few minutes.

try again

You have exceeded the session limit

• You can only have three sessions started at a time. We have closed the oldest session so you can continue browsing the rest without limits.

Keep browsing