Health--the master key : summary of lectures at the refresher course for health visitors, school nurses and tuberculosis visitors held at the University College, Hull, August 16th to 30th, 1947 / the Women Public Health Officers' Association.

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Health--the master key : summary of lectures at the refresher course for health visitors, school nurses and tuberculosis visitors held at the University College, Hull, August 16th to 30th, 1947 / the Women Public Health Officers' Association. Public Domain Mark. Source: Wellcome Collection.