TY - GEN AU - Cheng,Jacqueline T AU - Perkins,Stephen W AU - Hamilton,Mark M TI - Collagen and injectable fillers SN - 0030-6665 PY - 2002///0409 KW - Collagen KW - administration & dosage KW - Injections, Subcutaneous KW - Skin Aging N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/s0030-6665(03)00095-1 ER -