title: Letter: An aetiological agent in Whipple's disease?
mesh_terms: D000818:Animals; D006801:Humans; D011817:Rabbits; D013290:Streptococcal Infections; D013291:Streptococcus / Q000302:isolation & purification; D008061:Whipple Disease / Q000209:etiology* / Q000382:microbiology