Sources of NCI Information The National Cancer Institute (NCI) has developed numerous cancer information resources for both health professionals and the public. Many of these resources can be accessed via telephone, fax, or computer, and include:   Cancer Information Service The Cancer Information Service (CIS) is a nationwide information and education network for cancer patients and their families and friends, the public, and health professionals. The CIS can provide information from NCI's PDQ (Physician Data Query) database. One toll-free number, 1-800-4-CANCER (1-800-422-6237), connects English- and Spanish-speaking callers all over the country with the office that serves their area. The number for callers with TTY equipment is 1-800-332-8615.   World Wide Web Cancer information is available on the NCI homepages, accessible at http://rex.nci.nih.gov and http://cancernet.nci.nih.gov/.   CancerFax® CancerFax® provides cancer information by fax. To use CancerFax®, dial 301-402-5874 from the telephone on a fax machine and listen to the recorded instructions to receive a faxed list of available documents and instructions for having documents faxed to you.   CancerNet CancerNet is a service through which cancer information can be obtained by computer. To receive a CancerNet contents list and instructions for ordering documents, send an E-mail to cancernet@icicc.nci.nih.gov with "help" in the body of the message. List of NCI Designated Cancer Centers   Return to Cancer Research Main Page