Stephens, Thomas J <br/><br/>
The impact of natural sunlight exposure on the UVB-sun protection factor (UVB-SPF) and UVA protection factor (UVA-PF) of a UVA/UVB SPF 50 sunscreen.  [electronic resource] 

 -  Journal of drugs in dermatology : JDD  Feb 2011 
 - 150-5 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>1545-9616 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Drug Combinations<br/>Erythema--prevention & control<br/>Female<br/>Humans<br/>Male<br/>Product Labeling<br/>Propylene Glycols<br/>Skin<br/>Sodium Dodecyl Sulfate<br/>Solar System<br/>Sunburn--prevention & control<br/>Sunlight<br/>Sunscreening Agents--adverse effects<br/>Suntan<br/>Treatment Outcome<br/>Ultraviolet Rays--adverse effects