Capillary refill time response to a fluid challenge or a vasopressor test: an observational, proof-of-concept study oleh Glenn Hernández, Emilio Daniel Valenzuela, Eduardo Kattan, Ricardo Castro, Camila Guzmán, Alicia Elzo Kraemer, Nicolás Sarzosa, Leyla Alegría, Roberto Contreras, Vanessa Oviedo, Sebastián Bravo, Dagoberto Soto, Claudia Sáez, Hafid Ait-Oufella, Gustavo Ospina-Tascón, Jan Bakker