AdenomaPrevalenceAdenoma, PleomorphicAdenoma, VillousPituitary NeoplasmsAdrenocortical AdenomaAdenoma, Liver CellAdenoma, ChromophobeColorectal NeoplasmsGrowth Hormone-Secreting Pituitary AdenomaColonic PolypsRisk FactorsACTH-Secreting Pituitary AdenomaCross-Sectional StudiesColonoscopyAdenomatous PolypsAdenoma, AcidophilProlactinomaAdenoma, BasophilAdrenal Cortex Neoplasms