title: Actinomycosis from a toothpick injury.
mesh_terms: D000196:Actinomycosis; D002675:Child, Preschool; D006801:Humans; D007718:Knee Injuries / Q000150:complications*; D008297:Male; D014946:Wound Infection / Q000209:etiology*; D014950:Wounds, Penetrating / Q000150:complications*