Evaluating anti-GPL-core IgA as a diagnostic tool for non-tuberculous mycobacterial infections in Thai patients with high antibody background oleh Varis Manbenmad, Apichart So-ngern, Ploenchan Chetchotisakd, Kiatichai Faksri, Manabu Ato, Arnone Nithichanon, Ganjana Lertmemongkolchai