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By Lindsey Tanner The Associated Press

Drones carrying defibrillators could aid heart emergencies

CHICAGO — It sounds futuristic: drones carrying heart defibrillators swooping in to help bystanders revive people stricken by cardiac arrest.

Researchers tested the idea and found drones arrived at the scene of 18 cardiac arrests within about 5 minutes of launch. That was almost 17 minutes faster on average than ambulances a big deal for a condition where minutes mean life or death.

Pediatricians warn against pot use: Not your dad’s marijuana

CHICAGO — An influential doctors group is beefing up warnings about marijuana’s potential harms for teens amid increasingly lax laws and attitudes on pot use.

Many parents use the drug and think it’s OK for their kids, but “we would rather not mess around with the developing brain,” said Dr. Seth Ammerman.

1 in 4 US men have cancer-linked HPV genital infections

CHICAGO — The first national estimate suggests that nearly half of U.S. men have genital infections caused by a sexually transmitted virus and that 1 in 4 has strains linked with several cancers.

Most human papillomavirus infections cause no symptoms and most disappear without treatment. And most adults will get an HPV infection at some point in their lives.

Does a doctor’s gender affect your chance of survival?

CHICAGO — What if your doctor’s gender could influence your chance of surviving a visit to the hospital?

A big study of older patients hospitalized for common illnesses raises that provocative possibility — and also lots of questions. Patients who got most of their care from women doctors were more likely to leave the hospital alive than those treated by men.