For example, HLA-DRB1*0301 correlates with Löfgren's syndrome; HLA-DRB*12 and *14 with pulmonary sarcoidosis in the Netherlands8; and HLA-DRB1*04 with extrapulmonary disease, including in combination with HLA-DRB*15 in Sweden9and with HLA-DQB1*0301 in both Japanese and UK cohorts,8where strong links to uveitis and sarcoidosis-associated hypercalcemia have been observed.6, 8. This evidence concerns the gene HLA-DRB1 and Löfgren’s syndrome.