From article: > Experts not involved with the study said the VA population does not reflect the general population. > Patients at VA health facilities are gen

From article: > Experts not involved with the study said the VA population does not reflect the general population. > Patients at VA health facilities are generally older, sicker people and often men, a group that would typically have more than normal health complications, said John Moore, a professor of microbiology and immunology at Weill Cornell Medical College in New York.