Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hiro Shuntaro and Koizumi Harumi and Kaneko Megumi and Maeda Chihiro and Kanai Akinori and Fujii Hiroaki and Takahashi Kenichi,Two Cases of Platypnea-orthodeoxia Syndrome (POS) in Elderly Patients,Nihon Naika Gakkai Zasshi,00215384,The Japanese Society of Internal Medicine,2022-10-10,111,10,2139-2144,https://cir.nii.ac.jp/crid/1390297737446393984,https://doi.org/10.2169/naika.111.2139