DOI:
10.1055/s-00028422
Ultrasound International Open
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References
Menon R, Torloni MR, Voltolini C, Torricelli M, Merialdi M, Betran AP et al.
Biomarkers of spontaneous preterm birth: an overview of the literature in the last four decades.
Reprod Sci 2011;
18: 1046-1070
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