National Perinatal Epidemiology Unit – 1998 Report. Oxford: Radcliffe Infirmary, 1999, pp 119. ISBN 0953586006.
2000 ◽
Vol 42
(6)
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pp. 431-431
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2010 ◽
Keyword(s):
2017 ◽
pp. 442-448
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Keyword(s):
2001 ◽
Vol 154
(10)
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pp. 889-890
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