Loeff, Markus Loeys, Bart Loffredo, Lorenzo Lohvinov, Yaroslav M., National P.L. Shupyk Medical Academy of Postgraduate Education, Kyiv, Ukraine Löllgen, Herbert Lombardi, Gianmarco Lombardini, Rita Lomper, Katarzyna Longobardo, Luca Longrois, Dan López-Fernández, Teresa López-García, Sergio, School University of Education, Pontifical University of Salamanca, Salamanca, Spain López-García, Sergio López-Jaramillo, Patricio López-López, Jose López-Rodríguez, Javier, Cardiac Surgery Department. University Hospital of Salamanca López-Rodríguez, Javier, University Hospital of Salamanca Lorenc, Tomasz Lorenzoni, Giovanni Lorusso, Roberto Lorusso, Roberto Lorusso, Roberto Losada, Elena García-Campos Loster, Bartłomiej, Institute of Dentistry, Jagiellonian University Medical College, Krakow, Poland Loster, Bartłomiej