1. Conn, J. W.: The spontaneous hypoglycemias. J. A. M. A. 115:1669, 1940.
2. Steven, R. A.: Sugar tolerance in neurocirculatory asthenia. Am. Heart J. 29:396, 1943.
3. Boulin, R.: Les hypoglycemies cryptogenetiques. Progr. Med. Paris, 75:488, 1947.
4. Greenwood, Jr., J.: Hypoglycemia as cause of mental symptoms. Penn. Med. J. 39:12, 1935.
5. Sandier, B. P.: Abdominal pain due to hypoglycemia. Surg. 9:33, 1941.