Fig. 1From: The parent and family impact of CLN3 disease: an observational survey-based studySymptom onset and prevalence. (a) Timeline showing caregiver-reporter timing of symptom onset for individuals with CLN3 disease, sorted from earliest to latest onset. Mean onset is in bold, with standard deviation in parentheses. (b) Percent of respondents indicating that each sign or symptom was ever present, sorted from most to least frequentBack to article page