Fig. 1From: Effects of BDNF polymorphism and physical activity on episodic memory in the elderly: a cross sectional studyFlow chart describing the selection process of participants. Note: MMSE = Mini Mental State Examination; BDNF Val66Met = Brain derived neurotrophic factor gene polymorphism; MEMIII = Logical Memory test of the MEM III battery; PA = Level of physical activityBack to article page