When It comes precisely to amyotrophic lateral sclerosis (ALS), often called Lou Gehrig’s ailment, veterans who display Energetic, ongoing company of ninety times or maybe more usually are presumed to get designed the disorder due to their military services service. believable, credible - capable of being considered; "entirely credible testimony"; https://www.repforvets.com/more-cancers-now-presumptive-for-service-connection/