@article {Thomas:August 2000:0003-2409:826,
	author = "Thomas, A. N.",
	author = "Suresh, M.",
	title = "Opiate withdrawal after tramadol and patientcontrolled analgesia",
	journal = "Anaesthesia",
	volume = "55",
	year = "August 2000",
	abstract = "",
	pages = "826-827(2)",
	url = "http://www.ingentaconnect.com/content/bsc/anae/2000/00000055/00000008/art00046"
	doi = "doi:10.1046/j.1365-2044.2000.01629-30.x"
}