Cita APA

Johnston, N. W., & Sears, M. R. (2006). Asthma exacerbations · 1: Epidemiology. BMJ Group.

Chicago Style Citation

Johnston, N W., i M R. Sears. Asthma Exacerbations · 1: Epidemiology. BMJ Group, 2006.

Cita MLA

Johnston, N W., i M R. Sears. Asthma Exacerbations · 1: Epidemiology. BMJ Group, 2006.

Atenció: Aquestes cites poden no estar 100% correctes.