{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T20:21:23Z","timestamp":1740169283017,"version":"3.37.3"},"reference-count":69,"publisher":"Institute of Electrical and Electronics Engineers (IEEE)","license":[{"start":{"date-parts":[[2021,1,1]],"date-time":"2021-01-01T00:00:00Z","timestamp":1609459200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"}],"funder":[{"name":"Healthcare Engineering Innovation Center (HEIC), Khalifa University, Abu Dhabi, United Arab Emirates","award":["8474000132"],"award-info":[{"award-number":["8474000132"]}]},{"name":"Department of Education and Knowledge (ADEK), Abu Dhabi","award":["29934"],"award-info":[{"award-number":["29934"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IEEE Access"],"published-print":{"date-parts":[[2021]]},"DOI":"10.1109\/access.2021.3114029","type":"journal-article","created":{"date-parts":[[2021,9,20]],"date-time":"2021-09-20T20:26:14Z","timestamp":1632169574000},"page":"130111-130126","source":"Crossref","is-referenced-by-count":12,"title":["Revisiting Left Ventricular Ejection Fraction Levels: A Circadian Heart Rate Variability-Based Approach"],"prefix":"10.1109","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5248-6327","authenticated-orcid":false,"given":"Mohanad","family":"Alkhodari","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5457-6193","authenticated-orcid":false,"given":"Herbert F.","family":"Jelinek","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7207-5445","authenticated-orcid":false,"given":"Shiza","family":"Saleem","sequence":"additional","affiliation":[]},{"given":"Leontios J.","family":"Hadjileontiadis","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0636-1646","authenticated-orcid":false,"given":"Ahsan H.","family":"Khandoker","sequence":"additional","affiliation":[]}],"member":"263","reference":[{"key":"ref39","doi-asserted-by":"publisher","DOI":"10.1080\/01621459.1994.10476768"},{"key":"ref38","doi-asserted-by":"publisher","DOI":"10.3389\/fphys.2017.00255"},{"key":"ref33","doi-asserted-by":"publisher","DOI":"10.1186\/1742-4682-11-16"},{"key":"ref32","doi-asserted-by":"publisher","DOI":"10.1046\/j.1526-4610.2000.00068.x"},{"key":"ref31","doi-asserted-by":"publisher","DOI":"10.1007\/s00421-015-3185-x"},{"key":"ref30","doi-asserted-by":"publisher","DOI":"10.1109\/EMBC.2014.6943536"},{"key":"ref37","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevE.71.021906"},{"key":"ref36","doi-asserted-by":"publisher","DOI":"10.1017\/CBO9780511535338.006"},{"key":"ref35","doi-asserted-by":"publisher","DOI":"10.1111\/j.1542-474X.1996.tb00275.x"},{"key":"ref34","doi-asserted-by":"publisher","DOI":"10.1016\/j.eplepsyres.2018.08.002"},{"key":"ref60","doi-asserted-by":"publisher","DOI":"10.3810\/hp.2010.06.308"},{"key":"ref62","doi-asserted-by":"publisher","DOI":"10.1016\/0167-5273(92)90153-T"},{"key":"ref61","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(92)90200-I"},{"key":"ref63","doi-asserted-by":"publisher","DOI":"10.1159\/000357200"},{"key":"ref28","doi-asserted-by":"publisher","DOI":"10.1016\/B978-012500451-0\/50004-7"},{"key":"ref64","doi-asserted-by":"publisher","DOI":"10.3389\/fphys.2012.00356"},{"key":"ref27","doi-asserted-by":"publisher","DOI":"10.5772\/28766"},{"key":"ref65","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0118308"},{"key":"ref66","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0215053"},{"key":"ref29","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4419-8660-3"},{"key":"ref67","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(90)90030-5"},{"key":"ref68","doi-asserted-by":"publisher","DOI":"10.5935\/1984-0063.20190082"},{"key":"ref69","doi-asserted-by":"publisher","DOI":"10.1097\/MD.0000000000009181"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1002\/ehf2.12005"},{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.4065\/mcp.2009.0494"},{"key":"ref20","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2020.3033004"},{"key":"ref22","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehi067"},{"key":"ref21","doi-asserted-by":"publisher","DOI":"10.3389\/fnins.2021.610955"},{"key":"ref24","doi-asserted-by":"publisher","DOI":"10.1097\/HJH.0000000000001377"},{"key":"ref23","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8167.2007.00728.x"},{"key":"ref26","doi-asserted-by":"publisher","DOI":"10.1109\/IEMBS.2010.5628067"},{"journal-title":"Telemetric and Holter ECG Warehouse","year":"2012","key":"ref25"},{"key":"ref50","doi-asserted-by":"publisher","DOI":"10.1559\/152304097782438764"},{"journal-title":"Experiments Planning Analysis and Parameter Design Optimization","year":"2000","author":"hamada","key":"ref51"},{"key":"ref59","article-title":"Autonomic predictors of hospitalization due to heart failure decompensation in patients with left ventricular systolic dysfunction","volume":"11","author":"dani?owicz-szymanowicz","year":"2016","journal-title":"PLoS ONE"},{"key":"ref58","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-020-71909-8"},{"key":"ref57","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.77.2.108"},{"key":"ref56","doi-asserted-by":"publisher","DOI":"10.1016\/j.eupc.2005.02.114"},{"key":"ref55","doi-asserted-by":"publisher","DOI":"10.3389\/fphys.2017.00827"},{"key":"ref54","doi-asserted-by":"publisher","DOI":"10.1109\/10.959330"},{"key":"ref53","doi-asserted-by":"publisher","DOI":"10.3389\/fphys.2013.00026"},{"key":"ref52","doi-asserted-by":"publisher","DOI":"10.1002\/SERIES1345"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.3389\/fpubh.2017.00258"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1016\/j.pcad.2013.07.003"},{"key":"ref40","doi-asserted-by":"publisher","DOI":"10.1080\/08839514.2019.1637138"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1109\/JBHI.2020.3002336"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1109\/ESGCO49734.2020.9158170"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1109\/EMBC44109.2020.9175830"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.102.11.1239"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2007.10.030"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8167.2008.01232.x"},{"key":"ref18","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehn537"},{"key":"ref19","doi-asserted-by":"publisher","DOI":"10.3389\/fphys.2011.00065"},{"key":"ref4","first-page":"4","article-title":"Pathophysiology, risk stratification, and management of sudden cardiac death in coronary artery disease","volume":"17","author":"el-sherif","year":"2010","journal-title":"Cardiology"},{"key":"ref3","first-page":"1332","article-title":"Characterization and classification of patients with different levels of cardiac death risk by using Poincaré plot analysis","author":"rodriguez","year":"2017","journal-title":"Proc 39th Annu Int Conf IEEE Eng Med Biol Soc (EMBC)"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1016\/j.euje.2005.12.014"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2013.05.020"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.15420\/ecr.2012.8.2.108"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2017.07.717"},{"key":"ref49","first-page":"186","article-title":"The data model concept in statistical mapping","volume":"7","author":"jenks","year":"1967","journal-title":"International Yearbook of Cartography"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1016\/j.medengphy.2009.11.005"},{"key":"ref46","first-page":"1","article-title":"DataWig: Missing value imputation for tables","volume":"20","author":"biessmann","year":"2019","journal-title":"J Mach Learn Res"},{"key":"ref45","doi-asserted-by":"publisher","DOI":"10.1186\/2196-0739-1-4"},{"article-title":"Random forests","year":"2004","author":"breiman","key":"ref48"},{"key":"ref47","doi-asserted-by":"publisher","DOI":"10.1016\/j.cmpb.2021.105940"},{"key":"ref42","doi-asserted-by":"publisher","DOI":"10.1186\/s12874-021-01272-3"},{"key":"ref41","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-020-19270-2"},{"key":"ref44","doi-asserted-by":"publisher","DOI":"10.18637\/jss.v045.i03"},{"key":"ref43","doi-asserted-by":"publisher","DOI":"10.1016\/j.jss.2012.05.073"}],"container-title":["IEEE Access"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx7\/6287639\/9312710\/09541231.pdf?arnumber=9541231","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,12,17]],"date-time":"2021-12-17T19:55:40Z","timestamp":1639770940000},"score":1,"resource":{"primary":{"URL":"https:\/\/ieeexplore.ieee.org\/document\/9541231\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021]]},"references-count":69,"URL":"https:\/\/doi.org\/10.1109\/access.2021.3114029","relation":{},"ISSN":["2169-3536"],"issn-type":[{"type":"electronic","value":"2169-3536"}],"subject":[],"published":{"date-parts":[[2021]]}}}