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A randomized controlled trial on the use of pessary plus progesterone to prevent preterm birth in women with short cervical length (P5 trial).
Pacagnella RC, Mol BW, Borovac-Pinheiro A, Passini R Jr, Nomura ML, Andrade KC, Ellovitch N, Fernandes KG, Bortoletto TG, Pereira CM, Miele MJ, França MS, Cecatti JG; P5 Working Group. Pacagnella RC, et al. BMC Pregnancy Childbirth. 2019 Nov 27;19(1):442. doi: 10.1186/s12884-019-2513-2. BMC Pregnancy Childbirth. 2019. PMID: 31775669 Free PMC article.