7Vikat B,Kosunen E,Rimpela M.Risk of postpartum induced abortion in Finland:a register-based study.Perspect Sex Reprod Health,2002,34(2):84-90.
8Vikhlyaeva E,Nikolaeva E,Brandrup-Lukanow A.Contraceptive use and family planning after labor in the European part of the Russian Federation:2-year monitoring.Eur J Contracept Reprod Health Care,2001,6(4):219-26.
9Che Y,Cleland J.Unintended pregnancy among newly married couples in Shanghai.Int Fam Plan Perspect,2004,30(1):6-11.
10Smith KB,van der Spuy ZM,Cheng L.Is postpartum contraceptive advice given antenatally of value? Contraception,2002,65(3):237-43.
2Khaleel S. Hussaini,Douglas Ritenour,Dean V. Coonrod.Interpregnancy Intervals and the Risk for Infant Mortality: A Case Control Study of Arizona Infants 2003–2007[J].Maternal and Child Health Journal.2013(4)
3Tepper, Naomi K,Curtis, Kathryn M,Jamieson, Denise J,Marchbanks, Polly A.Update to CDC’s U.S. Medical Eligibility Criteria for Contraceptive Use, 2010: Revised Recommendations for the Use of Contraceptive Methods During the Postpartum Period[J].MMWR Morbidity and Mortality Weekly Report.2011(26)
4McKeating A, Maguire P J, Farren M,et al. The clinical outcomes of unplanned pregnancy in severely obese women[ J]. J Matem Fetal Neonatal Med, 2015,1-5 [ Epub ahead of print].
5Avsar A F, Yildirim M, Cinkaya A. Unexpected fetal demise despite the reactive nonstress test during the conservatiVe management of acute pancreatitis in pregnancy [J]. Int J Surg Case Rep, 2014,5 (12) :1047-1049.
6McKeating A, Crosby D A, Collins M, et al. A longitudinal study of unplanned pregnancy in a maternity hospital setting [J]. Int J Gynaecol Obstet,2015,128 ( 2 ) : 106 - 109.
7Connery H S, Albright B B, Rodolico J M. Adolescent substance use and unplanned pregnancy : strategies for risk reduction [J]. Obstet Gynecol Clin North Am,2014,41 (2) : 191-203.
8Vdzquez-Nava F, Gil-Lara B, Cruz-Torres L, et aL Association between unplanned pregnancy and adolescence onset asthma[J]. Rev Alerg Mex,2013,60(4) :152-160.
