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  1. 1
    by Ahlman, Kaj
    Published 1968
    Helsinki, Institute of Occupational Health; and Dept. of Pulmonary Diseases, University Central Hospital, 1968.
    48 p. illus. 25 cm.
  2. 2
    by Antila, Viljo
    Published 1962
    Helsinki, 1962.
    71 p. illus., tables. 24 cm.
  3. 3
    by Helske, Timo
    Published 1974
    Copenhagen : Munksgaard, 1974.
    65p. : graphs, map ; 26cm.
  4. 4
    by Romo, Matti
    Published 1972
    Helsinki [Distributed by Almqvist & Wiksell, Stockholm] 1972.
    92 p. illus.
  5. 5
  6. 6
  7. 7
    by Autio, Seppo
    Published 1972
    Helsinki : University of Helsinki, Children's Hospital, 1972.
    1 online resource (93 pages) : illustrations
    Center for Research Libraries.
    Online Resource
  8. 8
    by Autio, Seppo
    Published 1972
    Helsinki, University of Helsinki, Children's Hospital, 1972.
    93 pages illustrations 25 cm.

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