Nexus Letter Filter Field Display # 5 10 15 20 25 30 50 100 All Hits: 656 Doctors Nexus Letter in a VA Disability Claim Doctors Nexus Letter in a VA Disability Claim Hits: 708 VA Compensation Claims and the Medical Nexus Requirement VA Compensation Claims and the Medical Nexus Requirement Hits: 717 Dr. Jack D. Thrasher, PhD., Toxicologist Dr. Jack D. Thrasher, PhD., Toxicologist