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. 2022 Jan 3;20(1):5–37. doi: 10.1007/s41105-021-00353-6

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Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — Algorithm for the diagnosis and treatment of sleep apnea, considering medical insurance treatment. *AHI includes PSG AHI, simple monitor respiratory event index (traditional Japanese respiratory disturbance index), and oxygen desaturation index. Dotted line: examination or treatment options that may be considered. (The Japanese Circulation Society, Guidelines for Diagnosis and Treatment of Cardiovascular Diseases (2008–2009 Joint Research Group Report) Guidelines for the Diagnosis and Treatment of Sleep Respiratory Disorders in the Cardiovascular Area, which was prepared by referring to < http://www.j-circ.or.jp/guideline/pdf/JCS2010. momomura.h.pdf > [4])