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. 2021 Jun 29;34(4):1105–1140. doi: 10.1007/s00148-021-00856-z

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© The Author(s) 2021

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Fig. 7 — Estimated regression coefficient ${\hat{β}}_{1}$ with confidence intervals based on Eq. (1) as a function of time at which the outcome was measured. Dashed vertical line denotes two weeks after the re-testing round