title: [Heavy work, heavy amusements].
authors.affiliation: Kuopion yliopisto, neurotieteen ja neurologian laitos, Canthia PL 1627, 70211 Kuopio. heikki.tanila@uku.fi
authors.forename: H
authors.initials: H
authors.lastname: Tanila
mesh_terms: D002648:Child; D016288:Computer Terminals; D004433:Earache / Q000209:etiology*; D006801:Humans; D008297:Male; D009129:Muscle Tonus; D009334:Neck Muscles / Q000503:physiopathology*; D011187:Posture; D013035:Spasm / Q000150:complications* / Q000503:physiopathology