JFR JMIR Form Res JMIR Formative Research 2561-326X JMIR Publications Toronto, Canada v7i1e45810 36928234 10.2196/45810 Corrigenda and Addenda Corrigenda and Addenda Correction: Effectiveness of Secondary Risk–Reducing Strategies in Patients With Unilateral Breast Cancer With Pathogenic Variants of BRCA1 and BRCA2 Subjected to Breast-Conserving Surgery: Evidence-Based Simulation Study Maksimenko Jelena MD, PhD 1
Institute of Oncology, Department of Surgery, Breast Unit Pauls Stradiņš Clinical University Hospital Riga Stradiņš University Dzirciema 16 Riga Latvia 371 27038577 jelena.maksimenko@rsu.lv
https://orcid.org/0000-0003-2462-3125 Rodrigues Pedro Pereira MSc, PhD 2 https://orcid.org/0000-0001-7867-6682 Nakazawa-Miklaševiča Miki MSc, PhD 3 https://orcid.org/0000-0001-8198-0060 Pinto David MD 4 https://orcid.org/0000-0002-7998-3366 Miklaševičs Edvins Prof Dr biol 3 https://orcid.org/0000-0002-7817-4268 Trofimovičs Genadijs MD, PhD 5 https://orcid.org/0000-0001-6433-1499 Gardovskis Jānis MD, PhD 6 https://orcid.org/0000-0001-9656-6209 Cardoso Fatima MD 4 https://orcid.org/0000-0002-6692-2249 Cardoso Maria João MD, PhD 4 https://orcid.org/0000-0002-8137-3700 Institute of Oncology, Department of Surgery, Breast Unit Pauls Stradiņš Clinical University Hospital Riga Stradiņš University Riga Latvia Information and Health Decision Sciences of the Faculty of Medicine University of Porto Porto Portugal Institute of Oncology Riga Stradiņš University Riga Latvia Breast Cancer Unit Champalimaud Cancer Center Lisbon Portugal Faculty of Medicine Rīga Stradiņš University Riga Latvia Department of Surgery, Faculty of Medicine Pauls Stradins Clinical University Hospital Rīga Stradiņš University Riga Latvia Corresponding Author: Jelena Maksimenko jelena.maksimenko@rsu.lv 2023 16 3 2023 7 e45810 18 1 2023 20 1 2023 ©Jelena Maksimenko, Pedro Pereira Rodrigues, Miki Nakazawa-Miklaševiča, David Pinto, Edvins Miklaševičs, Genadijs Trofimovičs, Jānis Gardovskis, Fatima Cardoso, Maria João Cardoso. Originally published in JMIR Formative Research (https://formative.jmir.org), 16.03.2023. 2023

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 https://formative.jmir.org/2022/12/e37144

In “Effectiveness of Secondary Risk–Reducing Strategies in Patients With Unilateral Breast Cancer With Pathogenic Variants of BRCA1 and BRCA2 Subjected to Breast-Conserving Surgery: Evidence-Based Simulation Study” (JMIR Form Res 2022;6(12):e37144) the authors noted one error.

In the originally published article Figure 6 appeared as a duplicate of Figure 5.

Figure 6 has been corrected as follows:

Kaplan-Meier survival plots for simulation for 15 years, performed using TN subgroup cohort definitions from the largest published prospective POSH study.

The correction version appeared in the online version of the paper on the JMIR Publications website on January 18, 2023. Because this was made after submission to full-text repositories, the corrected article has also been resubmitted to those repositories.