Complex sentence: Some cases of developmental regression are caused by inherited metabolic disorders such as a Vitamin B12 deficiency, but could also be caused by CNS (Central Nervous System) tumour, hydrocephalus or meningitis Sreekantam, S., & Wassmer, E. (2013).
Split into simpler sentences: Some cases of developmental regression are caused by inherited metabolic disorders such as a Vitamin B12 deficiency, but could also be caused by CNS (Central Nervous System) tumour, hydrocephalus or meningitis. If Sreekantam, S., & Wassmer, E. (2013).