Otaka, Shunichi, Hiroyuki Ohbe, Ryuhei Igeta, Takuyo Chiba, Shunya Ikeda, and Takashi Shiga. 2022. “The Association Between Physician Involvement During Pediatric Out-of- Hospital Cardiac Arrest and Patient Outcomes: A Japanese Nation-Wide Observational Study”. Cardiology and Cardiovascular Medicine 6 (5):424-31. https://fortunejournals.org/ojs/index.php/ccm/article/view/16299.