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A randomized study of the efficacy and safety of injectable poly-L-lactic acid versus human-based collagen implant in the treatment of nasolabial fold wrinkles

Tissue EngineeringBiocompatible MaterialEngineeringRandomized StudyMedicineBiomaterials DesignSurgeryBiomedical EngineeringSoft Tissue ReconstructionHuman-based Collagen ImplantOrthopaedic SurgeryPlastic SurgeryNasolabial Fold Wrinkles