title: Are emotional stress and heavy muscular exertion measurable variables?
authors: A
authors: A
authors: Kraus
mesh_terms: D003882:Dermatomyositis / Q000209:etiology*; D006801:Humans; D009220:Myositis / Q000209:etiology*; D005082:Physical Exertion; D013315:Stress, Psychological / Q000150:complications*