title: On the nature of cystitis follicularis.
mesh_terms: D000328:Adult; D000368:Aged; D003556:Cystitis / Q000145:classification / Q000150:complications / Q000209:etiology* / Q000473:pathology; D003558:Cystoscopy; D004927:Escherichia coli Infections / Q000150:complications*; D005260:Female; D006801:Humans; D008214:Lymphocytes; D008221:Lymphoid Tissue / Q000473:pathology; D008297:Male; D008875:Middle Aged; D010950:Plasma Cells; D001743:Urinary Bladder / Q000473:pathology; D001749:Urinary Bladder Neoplasms / Q000150:complications*