Use these useful tools to look up prior rulings issued by the Board of Veterans Appeals in order to learn why the judge granted some cases while denying others. Learn, and model your own claim after a granted decision. Learn to avoid the pitfalls that the judge used in denying other decisions. Don’t make the same mistakes.
Search Board of Veterans Appeal decisions here.
https://search.usa.gov/search?affiliate=bvadecisions
Or, you can fine tune your search using this link.