Serum markers glial fibrillary acidic protein and neurofilament light for prognosis and monitoring in cognitively normal older people: a prospective memory clinic-based cohort stud... oleh Inge M W Verberk, MSc, Malika B Laarhuis, MSc, Karlijn A van den Bosch, MSc, Jarith L Ebenau, MD, Mardou van Leeuwenstijn, Niels D Prins, MD, Philip Scheltens, ProfMD, Charlotte E Teunissen, ProfPhD, Wiesje M van der Flier, ProfPhD