title: Permanent alopecia from pressure of a head strap.
mesh_terms: D000505:Alopecia / Q000209:etiology*; D000758:Anesthesia / Q000009:adverse effects*; D002675:Child, Preschool; D006801:Humans; D007103:Immobilization; D008297:Male; D011312:Pressure / Q000009:adverse effects