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The purpose of this article is to introduce and describe a statistical model that researchers can use to evaluate underlying mechanisms of behavioral onset and other event occurrence outcomes.(More)
BACKGROUND Men who have sex with men (MSM) are disproportionately at risk of contracting HIV and other sexually transmissible infections (STIs). Correct and consistent condom use is the most(More)
In the United States, an estimated 847000 persons are living with chronic hepatitis B virus (HBV) infection (1), and approximately 14000 deaths that are attributable to it occur each year (2). About(More)