Fig. 4From: Targeted delivery of nerve growth factor to the cholinergic basal forebrain of Alzheimer’s disease patients: application of a second-generation encapsulated cell biodelivery deviceHistology from two nerve-growth-factor- encapsulated cell biodelivery implants taken from (a) patient 1 (implant number 4) and (b) patient 4 (implant number 23) after explant. Original magnifications × 10, ×40 and × 100, as indicatedBack to article page