TY - RPRT TI - Antigen density in ELISA; effect on avidity dependency. AU - O P Lehtonen AU - M K Viljanen PY - 1980 DO - 10.1016/0022-1759(80)90094-0 UR - https://pubmed.ncbi.nlm.nih.gov/7009753/ ID - 7009753 ER -