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McFarlan AM, Topley E, Fisher M (1945). Trial of whooping-cough vaccine in city and residential nursery groups. BMJ 2:205-208.
The editors are grateful to:
BMJ for allowing the James Lind Library to link to this and other BMJ articles of historical relevance (email to Iain Chalmers from Fiona Godlee, 05 May 2015).