Irfannuddin, I.; Siagian, M.; Jusman, S.; Purba, J.; Ilyas, E.; Ibrahim, N. Hurdle Aerobic Exercise Increases Angiogenesis and Neuroplasticity in the Hippocampus and Improves the Spatial Memory Ability of Middle-Aged Mice. Open Access Maced J Med Sci 2020, 8, 395-402.