3Souza J P,Gulmezoglu A,Lumbiganon P,et al.Caesarean section without medical indications is associated with an increased risk of ad-verse short-term maternal outcomes:the 2004-2008 WHO Global Sur-vey on Maternal and Perinatal Health[ J].BMC Med,2010,8:71-73.
4Ververs MT,Antierens A,Sackl A,et al:Which Anthropometric In-dicators Identify a Pregnant Woman as Acutely Malnourished and Pre-dict Adverse Birth Outcomes in ihe Humanitarian Context? [ J].PLOS Curr,2013,5.133-135.