@article {Chung:November 2002:0163-8343:430,
	author = "Chung K.F.",
	author = "Lee C.K.Y.",
	title = "Over-the-counter sleeping pills: a survey of use in Hong Kong and a review of their constituents",
	journal = "General Hospital Psychiatry",
	volume = "24",
	year = "November 2002",
	abstract = "",
	pages = "430-435(6)",
	url = "http://www.ingentaconnect.com/content/els/01638343/2002/00000024/00000006/art00210"
	doi = "doi:10.1016/S0163-8343(02)00210-4"
}