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(A–C) Telomere length (TL) is associated across collection types. (A) T/S in venous blood and dried blood spots (DBS) are correlated (r = 0.84, p < 0.001). (B) T/S in saliva and venous blood are correlated (r = 0.56, p = 0.005). (C) T/S in saliva and DBS are correlated (r = 0.45, p = 0.027).
