title: Penetrating grass seed.
authors: P G
authors: PG
authors: Spellman
authors: J E
authors: JE
authors: Spencer
authors: A I
authors: AI
authors: Knox
mesh_terms: D000818:Animals; D004283:Dog Diseases / Q000209:etiology*; D004285:Dogs; D005547:Foreign Bodies / Q000662:veterinary*; D008297:Male; D006109:Poaceae; D012639:Seeds; D014521:Urethra