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. 2018 Feb 1;13(2):e0192033. doi: 10.1371/journal.pone.0192033

Fig 1. Illustration of steps performed by pregnancy episode algorithm for sample patient with three classified pregnancy episodes and estimated start dates.

Fig 1

LB: Live birth; SB: Stillbirth; ECT: Ectopic pregnancy; SA: Abortion; PCONF: Pregnancy confirmation marker; ULS: Nuchal ultrasound; AMEN: Amenorrhea record.