An open label study of clobetasol propionate 0.05% and betamethasone valerate 0.12% foams in the treatment of mild to moderate acne keloidalis.
Callender VD, Young CM, Haverstock CL, Carroll CL, Feldman SR. An open label study of clobetasol propionate 0.05% and betamethasone valerate 0.12% foams in the treatment of mild to moderate acne keloidalis. Cutis. 2005 Jun; 75(6):317-21.