00552ogm 2200157z- 450 9910319684403321(CKB)4910000000115073(EXLCZ)99491000000011507320240702cuuuuuuuu -u- vengAbsolute Quantification of Aβ1-42 in CSF Using a Mass Spectrometric Reference Measurement ProcedureMyJoVE CorpVIDEO9910319684403321Absolute Quantification of Aβ1-42 in CSF Using a Mass Spectrometric Reference Measurement Procedure2168274UNINA