Acne vulgaris in the United States: a descriptive epidemiology.
Yentzer
Brad A
BA
Department of Dermatology, Wake Forest University School of Medicine, Winston-Salem, North Carolina 27157- 1071, USA.
Hick
Jeff
J
Reese
Erin L
EL
Uhas
Adam
A
Feldman
Steven R
SR
Balkrishnan
Rajesh
R