Wiley, BJOG: An International Journal of Obstetrics and Gynaecology, 3(110), p. 263-266
DOI: 10.1046/j.1471-0528.2003.02390.x
Wiley, BJOG: An International Journal of Obstetrics and Gynaecology, 3(110), p. 263-266
DOI: 10.1016/s1470-0328(02)02390-x
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