TY - RPRT TI - Homogenous and heterogenous bone implants preserved by formaldehyde: a histologic study. AU - R Gonçalves AU - J Merzel PY - 1976 DO - 10.14219/jada.archive.1976.0253 UR - https://pubmed.ncbi.nlm.nih.gov/794091/ ID - 794091 ER -