Fig. 1From: Incidence, prognosis, and perinatal outcomes of and risk factors for severe twin–twin transfusion syndrome with right ventricular outflow tract obstruction in the recipient twin after fetoscopic laser photocoagulationThe flowchart of severe TTTS received FLP included and excluded into this study. TTTS: twin-twin transfusion syndrome. FLP: fetoscopic laser photocoagulation. TOF: tetralogy of FallotBack to article page