The National Cancer Institute, part of the National Institutes of Health (NIH), operates a toll free number with information about treatments for cancer. That number is 800-4-CANCER. The National Library of Medicine at NIH has developed a Clinical Trials database to provide patients, family members and members of the public current information about clinical research studies. NIH also operates a toll free number with information on clinical trials of drugs used to treat AIDS. That number is 800-TRIALS-A. | 
