title: Collagen pretest.
abstract: Zyderm, a bovine-collagen implant material, is costly. A simple tissue distensibility technique assists in forecasting the effectiveness and approximate cost of the collagen material to be used.
mesh_terms: D000818:Animals; D002417:Cattle; D003094:Collagen / Q000008:administration & dosage; D005145:Face; D006801:Humans; D019736:Prostheses and Implants; D013518:Surgery, Plastic
chemical_list: D003094:Collagen