Tessema, Gizachew A ; Marinovich, M Luke ; Håberg, Siri E... https://researchonline.lshtm.ac.uk/id/eprint/4662512/1/Interpregnancy%20intervals%20and%20adverse%20birth%20outcomes%20in%20high-income%20countries%20An%20international%20cohort%20study.pdf.
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2021