Developments in reference measurement systems for C-reactive protein and the importance of maintaining currently used clinical decision-making criteria Mauro Panteghini Why C-reactive protein is one of the most requested tests in clinical laboratories? Mario Plebani C-reactive protein and clinical outcome in COVID-19 patients: the importance of harmonized measurements Elena Aloisio, Giulia Colombo, Alberto Dolci, Mauro Panteghini Current performance of C-reactive protein determination and derivation of quality specifications for its measurement uncertainty Francesca Borrillo, Mauro Panteghini Implementing metrological traceability of C-reactive protein measurements: consensus summary from the Joint Committee for Traceability in Laboratory Medicine Workshop W. Greg Miller, Mauro Panteghini, Robert Wielgosz Analytical performance specifications for the measurement uncertainty of 24,25-dihydroxyvitamin D examinations Etienne Cavalier, Callum G. Fraser, Harjit Pal Bhattoa, Annemieke C. Heijboer, Konstantinos Makris, Samuel Vasikaran, Loreen Huyghebaert, Stéphanie Peeters, Caroline Le Goff, Markus Herrmann, Anna Carobene, the IFCC-IOF Committee for Bone Metabolisma A new door to a different world: opportunities from the metaverse and the raise of meta-medical laboratories Damien Gruson, Ronda Greaves, Pradeep Dabla, Sergio Bernardini, Bernard Gouget, Tuğba Kemaloğlu Öz Point-of-care testing performed by healthcare professionals outside the hospital setting: consensus based recommendations from the IFCC Committee on Point-of-Care Testing (IFCC C-POCT) Adil I. Khan, Busadee Pratumvinit, Ellis Jacobs, Gerald J. Kost, Heba Kary, Jan Balla, Julie Shaw, Lara Milevoj Kopcinovic, Michel Vaubourdolle, Paloma Oliver, Paul R.E. Jarvis, Prasad Pamidi, Rajiv T. Erasmus, Ruth O’Kelly, Samarina Musaad, Sverre Sandberg Effects of storage conditions on the stability of blood-based markers for the diagnosis of Alzheimer’s disease Andrea Mansilla, Marina Canyelles, Rosa Ferrer, Javier Arranz, Íñigo Rodríguez-Baz, Nuole Zhu, Sara Rubio-Guerra, Shaimaa El Bounasri, Oriol Sánchez, Soraya Torres, Juan Fortea, Alberto Lleó, Daniel Alcolea, Mireia Tondo Long-term stability of thyroid peroxidase antibody (anti-TPO) in serum in the Danish General Suburban Population Study Christian Z. Jensen, Birte Nygaard, Jens Faber, Palle L. Pedersen, Morten K. Larsen, Jørgen K. Kanters, Henrik E. Poulsen, Mark Kellogg, Christina Ellervik Exploration of suitable external quality assessment materials for serum C-peptide measurement Yuhang Deng, Chao Zhang, Bingqiong Li, Jing Wang, Jie Zeng, Jiangtao Zhang, Tianjiao Zhang, Haijian Zhao, Weiyan Zhou, Chuanbao Zhang Description and validation of an equilibrium dialysis ID-LC-MS/MS candidate reference measurement procedure for free thyroxine in human serum Heleen I. Jansen, Rob van der Steen, André Brandt, André J. Olthaar, Hubert W. Vesper, Eri Shimizu, Annemieke C. Heijboer, Katleen Van Uytfanghe, Antonius E. van Herwaarden Evaluation of testosterone, estradiol and progesterone immunoassay calibrators by liquid chromatography mass spectrometry David J. Handelsman, Graham Jones, Dorothy Kouzios, Reena Desai Lack of comparability of immunoassays for rheumatoid factor isotypes Maria Infantino, Boaz Palterer, Silvia Pancani, Maurizio Benucci, Valentina Grossi, Mariangela Manfredi, Nicola Bizzaro Validation of ELISA assays for the calculation of FLC indices for the diagnosis of intrathecal immunoglobulin synthesis Xavier Heim, Anne Michele Hubert, Issam Raouak, Anthony Charles Nzepa, Jean-Louis Mege, Emilien Delmont, Shahram Attarian, Lejla Koric, Jean Pelletier, Alexandre Brodovitch, José Boucraut First-trimester screening for Down syndrome using quadruple maternal biochemical markers Laurence Caron, Alexandre Fillion, Yves Giguère, François Audibert, Jean-Claude Forest, Cédric Gasse, Mario Girard, Geneviève Laforest, Paul Guerby, Emmanuel Bujold Dipeptidyl peptidase 4 (DPP4) in fecal samples: validation of the extraction methodology and stability in short-term storage conditions Sandra F. Gomes, Francisco Jorge Melo, Rita Silva, Mafalda Santiago, Maria Manuela Estevinho, Sandra Dias, Cláudia Camila Dias, Fernando Magro Interlaboratory variation for NT-proBNP among Swedish laboratories in an external quality program 2011–2021 Morgan Lundgren, Peter Ridefelt, Mathias Karlsson, Anna Norling, Anders Larsson SARS-CoV-2 specific T-cell humoral response assessment after COVID-19 vaccination using a rapid direct real-time PCR amplification Chiara Cosma, Luisa Galla, Andrea Padoan, Giulia Furlan, Lucio Marchioro, Martina Zaninotto, Daniela Basso, Mario Plebani Efficiency evaluation of a SARS-CoV-2 diagnostic strategy combining high throughput quantitative antigen immunoassay and real time PCR Luca Bernasconi, Peter Neyer, Michael Oberle, Bettina Schmid, Eileen Martin, Hans Fankhauser, Sebastian Haubitz, Angelika Hammerer-Lercher Peri-infection titers of neutralizing and binding antibodies as a predictor of COVID-19 breakthrough infections in vaccinated healthcare professionals: importance of the timing Constant Gillot, Jean-Louis Bayart, Mélanie Closset, Julien Cabo, Vincent Maloteau, Jean-Michel Dogné, Jonathan Douxfils, Julien Favresse Pooled analysis of laboratory-based SARS-CoV-2 antigen immunoassays Giuseppe Lippi, Brandon M. Henry, Mario Plebani Cost-effectiveness analysis of different COVID-19 screening strategies based on rapid or laboratory-based SARS-CoV-2 antigen testing Laura Pighi, Brandon M. Henry, Camilla Mattiuzzi, Simone De Nitto, Gian Luca Salvagno, Giuseppe Lippi Early kinetics of cellular immunity in recipients of bivalent BNT162b2 vaccine: a proof-of-concept study Gian Luca Salvagno, Laura Pighi, Brandon M. Henry, Simone De Nitto, Mario Plebani, Giuseppe Lippi Impact of switching total bilirubin assays on the classification of neonates at high risk for hyperbilirubinemia Saranya Kittanakom, Jennifer Shea, Felix Leung, Vinh Ly, Sinthu Panchadcharadevan, Sangeet Kathuria, Ivor Margolis, Vilte Barakauskas, Peter A. Kavsak Discrepancies in PSA values among laboratories: the case of a traveling patient Xavier Filella, Laura Izquierdo, Joel Mases, Kjell A. Youngren, Gines Escolar Measurement of amyloid-β 1–42 in cerebrospinal fluid: a comparison of the second generation Elecsys and INNOTEST Konstantinos Dimopoulos, Anja Hviid Simonsen, Mathias Holsey Gramkow, Mette Schrøder, Niklas Rye Jørgensen, Line Rode, Ruth Frikke Schmidt, Linda Hilsted, Steen Gregers Hasselbach |