Poulos C, Yang JC, Levin C, Minh HV, Giang KB, Nguyen D. Mothers' preferences and willingness to pay for HPV vaccines in Vinh Long Province, Vietnam. Soc Sci Med. 2011 Jul 1;73(2):226-34.
Huang K, Gutierrez LP, Bulow S, Gallinger S, Castells A, Eagle CJ, Church JM. Clinical characteristics and outcomes in familial adenomatous polyposis patients with a long-term treatment of celecoxib: a matched cohort study. Fam Cancer. 2011 Jun 1;10(2):303-8.