1. Occupational rheumatic diseases and upper limb strain in manual jobs in a light mechanical industry;Kuorinka, I.; Koskinen, P.;Scand J Work Environ Health,1979
2. Pain from the neck-shoulder region and sick leave;Westerling, D.; G, Jonsson B.;ScandJ Soc Med,1980
3. Occupational cervicobrachial syndromes. A review. Scand3r Work Environ;Waris, P.;Health,1980
4. Occupational musculoskeletal stress and disorders of the neck and shoulder: a review of possible pathophysiology;Hagberg, M.;Int Arch Occup Environ Health; of the trapezius muscle.7; reduced local blood flow to be associated with chronic myalgia,1984
5. chronic trapezius myalgia had a lower capillary:muscle fibre area ratio than did the referent group.9 All these studies point to a possible relationship between deficient nutrient supply and cervicobrachial pain;G, Fassbender H.; und Pathogenese des Weichteilrheumatismus. Z Rheumaforsh, Wegner K.Morphologie,1973