@article {stefanis2005effect,
	title = {Effect of COMT Val158Met polymorphism on the Continuous Performance Test, Identical Pairs Version: tuning rather than improving performance},
	journal = {American Journal of Psychiatry},
	volume = {162},
	number = {9},
	year = {2005},
	pages = {1752{\textendash}1754},
	publisher = {American Psychiatric Publishing},
	author = {Stefanis, Nicholas C and Van Os, Jim and Avramopoulos, Dimitrios and Smyrnis, Nikolaos and Evdokimidis, Ioannis and Stefanis, Costas N}
}
