TY - RPRT TI - "Top Down" characterization is a complementary technique to peptide sequencing for identifying protein species in complex mixtures. AU - Jennifer F Nemeth-Cawley AU - Bruce S Tangarone AU - Jason C Rouse DO - 10.1021/pr034008u UR - https://pubmed.ncbi.nlm.nih.gov/14582646/ ID - 14582646 ER -