Tretinoin emollient cream: a new therapy for photodamaged skin.
Olsen EA, Katz HI, Levine N, Shupack J, Billys MM, Prawer S, Gold J, Stiller M, Lufrano L, Thorne EG.
Olsen EA, et al.
J Am Acad Dermatol. 1992 Feb;26(2 Pt 1):215-24. doi: 10.1016/0190-9622(92)70030-j.
J Am Acad Dermatol. 1992.
PMID: 1552056
Clinical Trial.