TY - RPRT TI - Programmed aging or error catastrophe? An examination by two-dimensional polyacrylamide gel electrophoresis. AU - T E Johnson AU - G McCaffrey PY - 1985 DO - 10.1016/0047-6374(85)90118-6 UR - https://pubmed.ncbi.nlm.nih.gov/4021560/ ID - 4021560 ER -