Table 1.

PubMed search strategy.

Search	Query
#1	Search (papillomaviridae[mh] OR papilloma virus*[tiab] OR papillomavirus[tiab] OR HPV*[tiab] OR papillomavirus infections[mh] OR papilloma virus infect*[tiab])
#2	Search (HIV Infections[MeSH] OR HIV[MeSH] OR hiv[tiab] OR hiv-1*[tiab] OR hiv-2*[tiab] OR hiv1[tiab] OR hiv2[tiab] OR hiv infect*[tiab] OR human immunodeficiency virus[tiab] OR human immunedeficiency virus[tiab] OR human immuno-deficiency virus[tiab] OR human immune-deficiency virus[tiab] OR (human immun*[tiab] AND deficiency virus[tiab]) OR acquired immunodeficiency syndrome[tiab] OR acquired immunedeficiency syndrome[tiab] OR acquired immuno-deficiency syndrome[tiab] OR acquired immune-deficiency syndrome[tiab] OR (acquired immun*[tiab] AND deficiency syndrome[tiab]))
#3	Search (papillomavirus vaccines[mh] OR gardasil[tiab] OR cervarix[tiab] OR vaccine*[tiab] OR vaccinat*[tiab] OR immuniz*[tiab] OR immunis*[tiab])
#4	Search (randomized controlled trial [pt] OR controlled clinical trial [pt] OR randomized [tiab] OR placebo [tiab] OR drug therapy [sh] OR randomly [tiab] OR trial [tiab] OR groups [tiab]) NOT (animals [mh] NOT humans [mh])
#5	Search (#1 AND #2 AND #3 AND #4)