TY - RPRT TI - Collagen formation by fibroblasts: preliminary electron microscopic observations using thin sections of tissue cultures. AU - J H YARDLEY AU - M W HEATON AU - L M GAINES AU - L E SHULMAN PY - 1960 UR - https://pubmed.ncbi.nlm.nih.gov/13846469/ ID - 13846469 ER -