1 Morphological Madrid Research Center (MoMaRC), UltraDissection Spain EchoTraining School, Madrid, Spain; Department of Anesthesia and Pain Medicine, Hospital Universitario de Mostoles, Madrid, Spain. Electronic address: poliver@salud.madrid.org.
2 Morphological Madrid Research Center (MoMaRC), UltraDissection Spain EchoTraining School, Madrid, Spain; Department of Anesthesia and Pain Medicine Hospital de Trauma, Centro Integral de Salud de Puriscal, San José, Costa Rica.
3 Morphological Madrid Research Center (MoMaRC), UltraDissection Spain EchoTraining School, Madrid, Spain; Department of Anesthesia and Pain Medicine, Hospital Universitario de Mostoles, Madrid, Spain.
4 Morphological Madrid Research Center (MoMaRC), UltraDissection Spain EchoTraining School, Madrid, Spain; Department of Anesthesia, Hospital Universitario 12 de Octubre, Madrid, Spain.
5 Morphological Madrid Research Center (MoMaRC), UltraDissection Spain EchoTraining School, Madrid, Spain; Department of Outcomes Research Consortium, Cleveland Clinic Foundation, Cleveland, OH, USA; Anesthesiology Clinical Research Office, Ataturk University, Erzurum, Turkey.
6 Morphological Madrid Research Center (MoMaRC), UltraDissection Spain EchoTraining School, Madrid, Spain.
7 Morphological Madrid Research Center (MoMaRC), UltraDissection Spain EchoTraining School, Madrid, Spain; Punto vital Medical Center, Zaragoza, Spain.