MMWR: Morbidity & Mortality Weekly Report. Centers for Disease Control & Prevention (CDC).
Cita Chicago (17th ed.)MMWR: Morbidity & Mortality Weekly Report. Centers for Disease Control & Prevention (CDC).
Cita MLA (8th ed.)MMWR: Morbidity & Mortality Weekly Report. Centers for Disease Control & Prevention (CDC).
Atenció: Aquestes cites poden no estar 100% correctes.