Bone marrow involvement in non-Hodgkin's lymphoma.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001706:Biopsy; D001853:Bone Marrow / Q000473:pathology*; D005260:Female; D006801:Humans; D008223:Lymphoma / Q000097:blood / Q000473:pathology*; D008297:Male; D008875:Middle Aged