Defining a metrologically traceable and sustainable calibration hierarchy of international normalized ratio for monitoring of vitamin K antagonist treatment in accordance with International Organization for Standardization (ISO) 17511:2020 standard: communication from the International Federation of Clinical Chemistry and Laboratory Medicine–SSC/ISTH working group on prothrombin time/international normalized ratio standardization

A M H P van den Besselaar, Anne Stavelin, Steve Kitchen, Michelle Bryant, Armando Tripodi, Erica Scalambrino, Marigrazia Clerici, Petra Herbel, Anja Jünschke, Sascha Meyer dos Santos, Piet Meijer, René W.L.M. Niessen, Joost C.M. Meijers, Craig Thelwell, Adam Cuker, C. C. Kung, Zhenghua Cao, Norbert Zander, Yosuke Iwasaki, François Depasse, C. van Rijn, Shanti Baktawar, Charmane F. Abdoel, Christa M. Cobbaert