Our data on the expression of GAL in pituitary adenoma (Supplementary Table 2) correlate with previous published data, where 77% of patients with Cushing's disease (ACTH-secreting), 25% of patients with acromegaly (growth hormone-secreting), 13% of prolactinomas and 34% of non-functioning tumors expressed GAL (Supplementary Table 5). Here, GH1 is linked to acromegaly.