TY - RPRT TI - Ultrafiltration for proteomic sample preparation. AU - Elena Chernokalskaya AU - Sara Gutierrez AU - Aldo M Pitt AU - Jack T Leonard PY - 2004 DO - 10.1002/elps.200405998 UR - https://pubmed.ncbi.nlm.nih.gov/15300763/ ID - 15300763 ER -