We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Article |

Medical News

JAMA. 1976;236(16):1817-1822. doi:10.1001/jama.1976.03270170003001.
Text Size: A A A
Published online


NCI workers document the link of ultraviolet light, skin cancer  "We now have physical data, and not merely theoretical calculations, that support the hypothesis that ultraviolet radiation has an effect on the risk to skin cancer (among whites)."So say National Cancer Institute (NCI) researchers, who claim to have established a direct association between the incidence of malignant melanoma and basal or squamous cell carcinoma and measurements of ultraviolet radiation exposure from sunlight. Not surprisingly, they conclude that skin cancer incidence in the United States is greater where ultraviolet radiation levels are higher.Analyzing data compiled in 1974, the investigators say ultraviolet radiation is most intense from 11 AM to 1 PM local standard time, and 60% of the daily total radiation was recorded between 10 AM and 2 PM.Radiation in the wavelength considered to be biologically capable of producing erythema, and probably malignant lesions, was measured as


Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?




Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

0 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.