Procalcitonin in cerebrospinal fluid is not helpful for diagnosing external-ventricular-catheter-associated infection: a prospective study of diagnostic accuracy. (February 2023) - Dorresteijn, K.R.I.S.; Verheul, R.J.; Ponjee, G.A.E.; Nandoe Tewarie, R.D.S.; Müller, M.C.A.; van de Beek, D.; Brouwer, M.C.; Jellema, K.