The study was conducted in Haiti, one of the world's poorest countries, with one of the highest rates of HIV infection outside Africa.

VOA: standard.2010.07.21

The study was conducted at only one hospital.

VOA: standard.2010.07.23

One study conducted in the United States found no significant difference in the incidence of death among men who were screened for prostate cancer and those who weren't.

CNN: Let men decide on prostate screening, cancer society says

According to one study conducted by University of Buffalo researchers, obese men experience as much as a 40% drop in testosterone production, and that has direct, decidedly negative implications for sexual performance.

FORBES: Sorry, You Can't Sex Yourself Thin (But You Can Kill Your Sex Life with Fat)

In one study conducted by organizational psychologists Jennifer Mueller, Jack Goncalo, and Dishan Kamdar, 55 employees rated the responses of nearly 300 of their (unidentified) coworkers to a problem-solving task for both creativity (the extent to which their ideas were novel and useful) and as evidence of leadership potential.

FORBES: Why Creative People Are Kept Out of the Driver's Seat