LEADER 00552ogm 2200157z- 450 001 9910319684403321 035 $a(CKB)4910000000115073 035 $a(EXLCZ)994910000000115073 100 $a20240702cuuuuuuuu -u- v 101 0 $aeng 200 10$aAbsolute Quantification of A?1-42 in CSF Using a Mass Spectrometric Reference Measurement Procedure 210 $cMyJoVE Corp 906 $aVIDEO 912 $a9910319684403321 996 $aAbsolute Quantification of A?1-42 in CSF Using a Mass Spectrometric Reference Measurement Procedure$92168274 997 $aUNINA