CD4 and sarcoidosis: Assessment of LS and non-LS associated variants (as reported in ref. 17) in GWAS of T-cell levels, and CD4/CD8 ratio in blood of the healthy (as reported in ref. 22), and in lung of LS and non-LS patients (unpublished data), as a measure of pleiotropy provided further insights about T-cell genes in sarcoidosis.