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Lookup NU author(s): Emeritus Professor Robert Perry
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Author(s): Weller M, Perry RH
Publication type: Letter
Publication status: Published
Journal: Lancet
Year: 1973
Volume: 2
Issue: 7832
Pages: 799-800
Print publication date: 06/10/1973
Online publication date: 22/08/2003
ISSN (print): 0140-6736
ISSN (electronic): 1474-547X
URL: http://dx.doi.org/10.1016/S0140-6736(73)91075-1
DOI: 10.1016/S0140-6736(73)91075-1