Fig. 1From: Clinical and genetic analysis of two Chinese families with vitamin D-dependent rickets type IA and follow-upRadiographs of the patient 1 with VDDR-IA. a Before treatment, wrist radiograph disclosed the vanishing of the zone of provisional calcification in distal metaphysic, rarefaction of bone trabecula and thinness of the cortical bone in the ulna and radius. b After 3 months of treatment, improvement of bone trabecula is obvious. c After 1 year of treatment, wrist radiograph showed reoccurrence of the zone of provisional calcification in distal metaphysis, and improvement of bone trabecula and thickening of the corticalBack to article page