van Zijl, Maud Koullali, Bouchra Naaktgeboren, Christiana Schuit, Ewoud Bekedam, Dick Moll, Etelka Oudijk, Martijn van Baal, Wilhelmina de Boer, Marjon Visser, Henricus van Drongelen, Joris van de Made, Flip Vollebregt, Karlijn Muller, Moira Bekker, Mireille Brons, Jozien Sueters, Marieke Langenveld, Josje Franssen, Maureen Schuitemaker, Nico van Beek, Erik Scheepers, Hubertina de Boer, Karin Tepe, Eveline Huisjes, Anjoke Hooker, Angelo Verheijen, Evelyn Papatsonis, Dimitri Mol, Ben Kazemier, Brenda Pajkrt, Eva Additional file 1: Figure 1. of Pessary or Progesterone to Prevent Preterm delivery in women with short cervical length: the Quadruple P randomised controlled trial Flow diagram Quadruple P study. (PDF 402 kb) Preterm birth;Singletons;Multiples;Prevention;Pessary;Progesterone 2017-09-04
    https://springernature.figshare.com/articles/journal_contribution/Additional_file_1_Figure_1_of_Pessary_or_Progesterone_to_Prevent_Preterm_delivery_in_women_with_short_cervical_length_the_Quadruple_P_randomised_controlled_trial/5374480
10.6084/m9.figshare.c.3870832_D1.v1