Vogel, J. P., Torloni, M. R., Seuc, A., Betrán, A. P., Widmer, M., Souza, J. P., & Merialdi, M. (2013). Maternal and Perinatal Outcomes of Twin Pregnancy in 23 Low- and Middle-Income Countries. Public Library of Science.

Vogel, Joshua P., Maria Regina Torloni, Armando Seuc, Ana Pilar Betrán, Mariana Widmer, João Paulo Souza, e Mario Merialdi. Maternal and Perinatal Outcomes of Twin Pregnancy in 23 Low- and Middle-Income Countries. Public Library of Science, 2013.

Vogel, Joshua P., et al. Maternal and Perinatal Outcomes of Twin Pregnancy in 23 Low- and Middle-Income Countries. Public Library of Science, 2013.