TY - RPRT TI - Long-term serologic studies with treponemal procedures. AU - G H KOSTANT AU - S E LANDY AU - L C KELCEC PY - 1961 DO - 10.1001/archderm.1961.01580140136018 UR - https://pubmed.ncbi.nlm.nih.gov/13753420/ ID - 13753420 ER -