Pituitary Foundation :- http://www.pituitary.org.uk/ Pituitary Society :- http://www.pituitarysociety.org Society for Endocrinology :- http://www.endocrinology.org/ THE PITUITARY NETWORK ASSOCIATION :- http://www.pituitary.org/intro.aspx European Society of Endocrinology :- https://www.ese-hormones.org/ The Endocrine Society :- http://www.endo-society.org/ American Association of Clinical Endocrinology :- http://www.aace.com/ European NeuroEndocrine Association :- http://www.eneassoc.org/ European Society for Paediatric Endocrinology :- http://www.eurospe.org/ British Society for Neuroendocrinology :- http://www.neuroendo.org.uk/ The Association for Multiple Endocrine Neoplasia Disorders (AMEND):- http://www.amend.org.uk The Hormone Foundation:- http://www.hormone.org National Institutes of Health /National Library of Medicine:- http://www.nlm.nih.gov/medlineplus/pituitarydisorders.htmlNational Cancer Institute - Pituitary Tumors Treatment:-http://www.cancer.gov/cancertopics/pdq/treatment/pituitary/patient