TY - RPRT TI - Two-step matrix application technique to improve ionization efficiency for matrix-assisted laser desorption/ionization in imaging mass spectrometry. AU - Yuki Sugiura AU - Shuichi Shimma AU - Mitsutoshi Setou PY - 2006 DO - 10.1021/ac060974v UR - https://pubmed.ncbi.nlm.nih.gov/17165811/ ID - 17165811 ER -