Section 1. Any person who (a) is a veteran as defined in clause Forty-third of section seven of chapter four, or (b) meets all the requirements of said clause Forty-third, except that instead of performing wartime service as so defined, has performed not less than ninety days’ active service in any of the campaigns or expeditions enumerated in section two, shall be entitled to out-patient treatment at, admission to, and hospitalization in a state-operated veterans’ home, subject to the provisions of section three.