Authors: Rachel A Haws; Mohammad Yawar Yakoob; Tanya Soomro; Esme V Menezes; Gary L Darmstadt; Zulfiqar A Bhutta Journal: BMC Pregnancy Childbirth Date: 2009-05-07 Impact factor: 3.007
Authors: Eliana M Wendland; Maria Eugênia Pinto; Bruce B Duncan; José M Belizán; Maria Inês Schmidt Journal: BMC Pregnancy Childbirth Date: 2008-12-16 Impact factor: 3.007