91色情片

Each year in the US, 12 million people are infected with sexually
transmitted diseases. The annual cost is estimated at $10 billion. Full
of fascinating and at times terrifying statistics, The Hidden Epidemic:
Confronting Sexually Transmitted Diseases is an impassioned plea from the US
medical profession for greater public awareness, improved health care and a
national campaign of education. Published by National Academy Press,
拢32.95, ISBN 0309054958.