RT Journal A1 Yazdanpanah Y, Walensky RP, Rozenbaum W, Yeni P, Paltiel A T1 WHat is a modest public health impact? JF Archives of Internal Medicine JO Archives of Internal Medicine YR 2012 FD March 26 VO 172 IS 6 SP 521 OP 522 DO 10.1001/archinternmed.2011.1876 UL http://dx.doi.org/10.1001/archinternmed.2011.1876 AB Further studies are needed to understand how to identify patients with undiagnosed HIV infection. We commend d’Almeida et al1 on their findings, which we believe, lend further evidence to the value of expanded and routine rather than targeted HIV testing.