It’s been 15 months since Arbitron got the Media Rating Council (MRC) to accredit a new Portable People (PPM) market, so the addition of the MRC double-checks to 11 more markets on Thursday (3/31) was ...

Nielsen is making a change to its Portable People Meter panel operations, extending the tenure of panel homes from about two years to roughly three years. The adjustment, set to take effect August 12, ...

Among patients hospitalised with myocardial infarction (MI), those with expiratory carbon monoxide (CO) levels exceeding 11 ppm had significantly increased risks for 1-year all-cause death and other ...