Increased: The number of people has increased -- there is a higher population -- but also, the imaging techniques (mri, ct), and laboratory tests have improved our ability to detect tumors much smaller than before , and so we tend to find more.
Answered 6/12/2012
5.8k views
3 doctors weighed in across 2 answers
6 doctors weighed in across 2 answers
A doctor has provided 1 answer
4 doctors weighed in across 3 answers
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question