In Response to "Clinical Characteristics Associated with Early Phase Psychosis and Comorbid Substance Use": Methodological Concerns. (February 2021) - Hwang, Philippe; Hechtman, Lily; Carboni-Jiménez, Andrea; Demchenko, Ilya; Maduro, Alexandra; Mady, Noor; Tounkara, Fama; Sapkota, Ram P.; Brunet, Alain