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. Author manuscript; available in PMC: 2019 May 6.
Published in final edited form as: Vaccine. 2017 Sep 25;35(40):5314–5322. doi: 10.1016/j.vaccine.2017.06.069

Fig. 1.

Fig. 1.

Identification and confirmation of spontaneous abortions. Flow chart describing how spontaneous abortion cases were selected for study. *SAB date outside of the targeted date range for this study (n = 32) or failed to satisfy enrollment criteria (n = 37). SAB: spontaneous abortion, LMP: last menstrual period.