• 1
    Ortibus E, Lopriore E, Deprest J, Vandenbussche FP, Walther FJ, Diemert A, Hecher K, Lagae L, De Cock P, Lewi PJ, Lewi L. The pregnancy and long-term neurodevelopmental outcome of monochorionic diamniotic twin gestations: a multicenter prospective cohort study from the first trimester onward. Am J Obstet Gynecol 2009; 200: 494.e18.
  • 2
    Roberts D, Gates S, Kilby M, Neilson JP. Interventions for twin-twin transfusion syndrome: a Cochrane review. Ultrasound Obstet Gynecol 2008; 31: 701711.
  • 3
    Rossi AC, D'Addario V. The efficacy of Quintero staging system to assess severity of twin-twin transfusion syndrome treated with laser therapy: a systematic review with meta-analysis. Am J Perinatol 2009; 26: 537544.
  • 4
    Senat M-V, Deprest J, Boulvain M, Paupe A, Winer N, Ville Y. Endoscopic laser surgery versus serial amnioreduction for severe twin-to-twin transfusion syndrome. N Engl J Med 2004; 351: 136144.
  • 5
    Magann EF, Sanderson M, Martin JN, Chauhan S. The amniotic fluid index, single deepest pocket, and two-diameter pocket in normal human pregnancy. Am J Obstet Gynecol 2000; 182: 15811588.
  • 6
    Magann EF, Doherty DA, Ennen CS, Chauhan SP, Shields D, Gjesdal SM, Morrison JC. The ultrasound estimation of amniotic fluid volume in diamniotic twin pregnancies and prediction of peripartum outcomes. Am J Obstet Gynecol 2007; 196: 570.e16.
  • 7
    Royston P. Calculation of unconditional and conditional reference intervals for foetal size and growth from longitudinal measurements. Stat Med 1995; 14: 14171436.
  • 8
    Bates D, Maechler M, Bolter B. lme4: Linear and generalized linear mixed-effects models. R-package, 2010.
  • 9
    CRAN (Comprehensive R-Archive Network). R Development Core Team. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria, 2009.
  • 10
    Klaritsch P, Deprest J, Van Mieghem T, Gucciardo L, Done E, Jani J, Lewi P, Rasmussen S, Lewi L. Reference ranges for middle cerebral artery peak systolic velocity in monochorionic diamniotic twins: a longitudinal study. Ultrasound Obstet Gynecol 2009; 34: 149154.
  • 11
    Bebbington MW, Tiblad E, Huesler-Charles M, Wilson RD, Mann SE, Johnson MP. Outcomes in a cohort of patients with Stage I twin-to-twin transfusion syndrome. Ultrasound Obstet Gynecol 2010; 36: 4851.
  • 12
    Blickstein I. Normal and abnormal growth of multiples. Semin Neonatol 2002; 7: 177185.
  • 13
    Lewi L, Lewi P, Diemert A, Jani J, Gucciardo L, Van Mieghem T, Donè E, Gratacos E, Huber A, Hecher K, Deprest J. The role of ultrasound examination in the first trimester and at 16 weeks' gestation to predict fetal complications in monochorionic diamniotic twin pregnancies. Am J Obstet Gynecol 2008; 199: 493.e17.
  • 14
    Huber A, Diehl W, Zikulnig L, Bregenzer T, Hackeloër BJ, Hecher K. Perinatal outcome in monochorionic twin pregnancies complicated by amniotic fluid discordance without severe twin–twin transfusion syndrome. Ultrasound Obstet Gynecol 2006; 27: 4852.