Expression of members of the interleukin-6 family of cytokines and their receptors in human pituitary and pituitary adenomas. - Hanisch,A.; Dieterich,K.D.; Dietzmann,K.; Ludecke,K.; Buchfelder,M.; Fahlbusch,R.; Lehnert,H. (J Clin Endocrinol Metab, 2000)