A multicenter, randomized, placebo-controlled, double-blind clinical trial of a novel formulation of 5 % minoxidil topical foam versus placebo in the treatment of androgenetic alopecia in men. - Olsen,E.A.; Whiting,D.; Bergfeld,W.; Miller,J.; Hordinsky,M.; Wanser,R.; Zhang,P.; Kohut,B. (J Am Acad Dermatol, 2007)