Fig. 4From: Neurofilament light and heterogeneity of disease progression in amyotrophic lateral sclerosis: development and validation of a prediction model to improve interventional trialsTemporal fluctuations of NfL blood levels in each patient. ln(NfL) measurements from each individual patient are connected by lines, and patients are colored based on the order of magnitude of their average ln(NfL) values. The time points of a given patient are ordered by time from left to right and equally spacedBack to article page