Stefanelli R, Oliver D, Damiani S, Orlandi M, Provenzani U, Bortolin E, Rovida M, Addington J, Alameda L, Arango C, Breitborde NJ, Broome M, Cadenhead KS, Calkins ME, Carrion RE, Castillo-Passi RI, Chen YHE, Choi J, Conus P, Cornblatt BA, Díaz-Caneja CM, Ellman LM, Gaspar PA, Gerber C, Birkedal Glenthøj L, Horton LE, Hui CL, Kambeitz J, Kambeitz-Ilankovic L, Keshavan MS, Kim M, Kim SW, Koutsouleris N, Kwon JS, Langbein K, Mamah D, Mathalon DH, Mittal VA, Nordentoft M, Pearlson GD, Penzel N, Perez J, Perkins DO, Powers AR, Rogers JR, Sabb FW, Schiffman J, Shah J, Silverstein SM, Smesny S, Stone WS, Strauss GP, Thompson JL, Upthegrove R, Verma S, Wang J, Wolf DH, Zhang T, Bouix S, Corcoran CM, Kapur T, Pasternak O, Bearden C, Kahn RS, Kane JM, McGorry PD, Nelson B, Shenton ME, Woods SW, Accelerating Medicines Partnership Schizophrenia (AMP SCZ), Fusar-Poli P. External validation and refinement of the Psychosis Polyrisk Score to detect individuals at clinical high risk for psychosis. BMJ Ment Health. 2026 Sep 28; 29(1).