Results 181 to 190 of about 3,203,188 (247)

Making sure that clinical trial results make a difference: Operational Research and the Hierarchy of Evidence. [PDF]

open access: yes, 2013
Anon   +11 more
core   +2 more sources

Prevalence of, and factors associated with oral sexual behaviours in men and women in Ibadan, Nigeria. [PDF]

open access: yesPLoS One
Morhason-Bello IO   +10 more
europepmc   +1 more source

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