The Skin Cancer Prevention Study: design of a clinical trial of beta-carotene among persons at high risk for nonmelanoma skin cancer.

Abstract

We describe a randomized clinical trial of oral beta-carotene (50 mg/day) for preventing nonmelanoma skin cancer. It is a multicenter study conducted at sites in California, Minnesota, and New Hampshire. This report describes the design of the study, baseline characteristics of the 1805 randomized patients, changes in their plasma beta-carotene and retinol… (More)

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@article{Greenberg1989TheSC, title={The Skin Cancer Prevention Study: design of a clinical trial of beta-carotene among persons at high risk for nonmelanoma skin cancer.}, author={E. R. Greenberg and John A. Baron and Molly M. Stevens and Th{\'e}r{\`e}se A. Stukel and J. Mandel and Steven K. Spencer and Peter M Elias and N. Lowe and Danielle Nierenberg and G T Bayrd}, journal={Controlled clinical trials}, year={1989}, volume={10 2}, pages={153-66} }