BIBLIOGRAPHY

http://www.medicinenet.com/script/main/art.asp?articlekey=9702

http://www.hopkinsmedicine.org/healthlibrary/conditions/endocrinology/adrenal_glands_85,P00399/

http://www.endocrineweb.com/endocrinology/overview-adrenal-glands

http://www.uchospitals.edu/online-library/content=P00399

http://www.thefreedictionary.com/adrenal+medulla

http://www.endocrineweb.com/conditions/pheochromocytoma/pheochromocytoma-tumor-central-adrenal

http://en.m.wikipedia.org/wiki/Adrenal_medulla

http://en.m.wikibooks.org/wiki/Human_Physiology/The_endocrine_system#Adrenal_glands