Fig. 1From: Insights into the natural history of metachromatic leukodystrophy from interviews with caregiversCategories of first symptomsa reported in patients with late-infantile and juvenile MLD. aSymptoms reported by parents were assigned to the given categories during analysis (e.g. gripping, finger movements or swallowing were classified as fine motor functions; head control, sitting and standing/walking were classified as gross motor functions). MLD, metachromatic leukodystrophyBack to article page