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American Journal of Epidemiology|June 6, 2008
Using sexually transmitted infection biomarkers to validate reporting of sexual behavior within a randomized, experimental evaluation of interviewing methodsPaul C Hewett, Barbara S Mensch, Manoel Carlos S de A Ribeiro, et al.Nature|July 2, 2011
A luminous quasar at a redshift of z = 7.085Daniel J Mortlock, Stephen J Warren, Bram P Venemans, et al.Pageof 5