Juniper M, Le TK, Mladsi D. The epidemiology, economic burden, and pharmacological treatment of chronic low back pain in France, Germany, Italy, Spain and the UK: a literature-based review. Expert Opin Pharmacother. 2009 Nov 1;10(16):2581-92. doi: 10.1517/14656560903304063.
Whittington D, Sur D, Cook J, Chatterjee S, Maskery B, Lahiri M, Poulos C, Boral S, Nyamete A, Deen J, Ochiai L, Bhattacharya SK. Rethinking cholera and typhoid vaccination policies for the poor: private demand in Kolkata, India. World Dev. 2009 Feb 1;37(2):399-409.
Weiner JR, Toy EL, Sacco P, Duh MS. Costs, quality of life, and treatment compliance associated with antibiotic therapies in patients with cystic fibrosis: a review of the literature expert. Expert Opin Pharmacother. 2008 Apr;9(5):751-66.