Ia: Systematic review/meta-analysis Ib: Randomized controlled trial IIa: Non-randomized controlled trial or large-scale cohort study ( n 500) IIb: Analytic epidemiologic study: small-scale cohort, case-control, or cross-sectional III: Descriptive study: case report or case series report IV: Laboratory experiments and others Criteria for recommendations and consensus building A draft version of this document was distributed to each Working Group member for review and comments
Walmart said Wednesday that it will raise the minimum age for tobacco products and e-cigarettes to 21 in an effort to combat tobacco sales to minors
A critically acclaimed box-office hit, Chinatown received 11 Academy Award nominations, including best picture, director, actor and actress
Shakira - "I'll Stand By You" (1 ringtone)
According to the data provided by Varona, some 1,500 Cubans die every year of lung cancer and heart disease alone
Mexicos narco-cultura, a term that refers to the music, films and fashion inspired by drug cartels, has been a controversial part of life in the country
