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Journal of Obstetrics and Gynaecology Research > 40 > 2 > 465 - 472
Paediatric and Perinatal Epidemiology > 26 > s1 > 36 - 54
Journal of Obstetrics and Gynaecology Research > 40 > 2 > 465 - 472
Paediatric and Perinatal Epidemiology > 26 > s1 > 36 - 54