Today's Globe: tobacco bans, Lyme on Nantucket, doctor's suspension, breast cancer tracer, heart shocks, measles vaccine, statins for stroke, drug abuse, joint-maker probe, bottle safety

Cigarette sales at Boston drugstores and on college campuses would be banned under sweeping new tobacco control rules likely to win initial approval today from health regulators.

Nantucket is reporting a spike in cases of Lyme disease, with 262 people already diagnosed this summer - up nearly 39 percent from last year, with time to climb.

Dr. Robert T. Dolan, a 39-year-old anesthesiologist at Caritas St. Elizabeth's Medical Center in Brighton, has been suspended for allegedly practicing medicine under the influence of alcohol, the state Board of Registration in Medicine said in a statement yesterday.

A radioactive tracer that can find cancer in dense breasts showed promise in its first big comparison test against mammograms, revealing more tumors and giving fewer false alarms, doctors reported yesterday.

A lifesaving shock from an implanted heart defibrillator provides relief that a crisis was avoided, but new research suggests it can also be a sign that more trouble is ahead.

New research further debunks any link between measles vaccine and autism, work that comes as the nation is experiencing a surge in measles cases fueled by children left unvaccinated.

Older people who have had a stroke or mini-stroke benefit from cholesterol-lowering statin drugs just as much as younger people do, US researchers said yesterday.

Cocaine and methamphetamine use among young adults declined significantly last year as supplies dried up, leading to higher prices and reduced purity, the government reports. Drug use increased among the 50-59 age group as more baby boomers joined that category.

The US Justice Department is investigating whether Stryker Corp., the third-largest maker of artificial hips and knees, illegally paid surgeons to induce them to use company products, according to a court filing.

Government toxicologists have reiterated safety concerns about a chemical used in baby bottles and food containers, just weeks after the Food and Drug Administration declared the substance safe (third item).