 Peripheral Neuropathy: Research staff will evaluate Vibration Perception Threshold VPT Testing to evaluate large fiber neuropathy SemmesWeinstein monofilaments, and the Modified Neuropathy Disability Score. Armstrong and Lawrence 1998 will be done. Research staff will assess light touch and pressure sensation at nine sites on each foot using 4, 10, 26, and 60 SemmesWeinstein gram monofilaments. Diamond, Mueller et al. 1989 The Modified Neuropathy Disability Score is a scored clinical examination that includes Achilles deep tendon reflex, pressure, vibration sensation and temperature sensation in both feet. 