Adverse reactions to tretinoin and collagen injections.
Elson
M L
ML
D003094:Collagen / Q000008:administration & dosage / Q000009:adverse effects*; D004890:Erythema / Q000209:etiology*; D006801:Humans; D007279:Injections, Subcutaneous; D014212:Tretinoin / Q000009:adverse effects*
D014212:Tretinoin; D003094:Collagen