1. IVF twins have similar obstetric and neonatal outcome as spontaneously conceived twins: a prospective follow-up study 
Elena Vasario, Valentina Borgarello, Carlotta Bossotti, Enrico Libanori, Marilisa Biolcati, Silvana Arduino, Rita Spinelli, Luisa Delle Piane, Alberto Revelli, Tullia Todros 
Reproductive BioMedicine Online 
Volume 21, Issue 3, Pages (September 2010)
DOI: /j.rbmo
Copyright © 2010 Reproductive Healthcare Ltd. Terms and Conditions

2. Figure 1
Type of preterm labour in IVF and spontaneous twin pregnancies by gestational age at (A) 30–31 weeks and (B) 32–36 weeks.
Reproductive BioMedicine Online  , DOI: ( /j.rbmo )
Copyright © 2010 Reproductive Healthcare Ltd. Terms and Conditions