@article {Ruoff:April 2003:0149-2918:1123,
	author = "Ruoff G.E.",
	author = "Rosenthal N.",
	author = "Jordan D.",
	author = "Karim R.",
	author = "Kamin M.",
	author = "on behalf f the Protocol CAPSS-112 Study Group",
	title = "Tramadol/Acetaminophen combination tablets for the treatment of chronic lower back pain: A multicenter, randomized, double-blind, placebo-controlled outpatient study",
	journal = "Clinical Therapeutics",
	volume = "25",
	year = "April 2003",
	abstract = "",
	pages = "1123-1141(19)",
	url = "http://www.ingentaconnect.com/content/els/01492918/2003/00000025/00000004/art80071"
	doi = "doi:10.1016/S0149-2918(03)80071-1	"
}