Nishiura I, Tanaka K, Murachi T
Experientia. 1979 Aug 15;35(8):1006-7. doi: 10.1007/BF01949908.
An endogenous, heat-stable inhibitor of high mol. wt (approximately 3x10(5)) was found to be present in rat brain, which inhibited Ca2+-dependent neutral protease specifically but not due to its binding of Ca2+ in the medium .