Buchhorn R. An Algorithm to Predict Life-Threatening Complications using Heart Rate Variability and the Circadian Heart Rate Difference with a Special Interest on Covid-19, Sudep Children with Congenital Heart Disease and Obesity. BJHR [Internet]. 2020Aug.1 [cited 2025Dec.5];7(4):01-10. Available from: https://journals.scholarpublishing.org/index.php/BJHR/article/view/8589