Smoothed centiles for heart rate during pregnancy in beats per minute

From: Green LJ, Mackillop LH, Salvi D, et al. Gestation-specific vital sign reference ranges in pregnancy. Obstet Gynecol 2020; 135:653. Copyright © 2020 The Authors. https://journals.lww.com/greenjournal/fulltext/2020/03000/gestation_specific_vital_sign_reference_ranges_in.21.aspx (Accessed on September 11, 2023). Reproduced under the terms of the Creative Commons Attribution License 4.0.