Varona, B. P. (2011). Emphysema: Fighting to breathe. HealthToday Philippines.
Citación estilo ChicagoVarona, Bernice P. "Emphysema: Fighting to Breathe." HealthToday Philippines 2011.
Cita MLAVarona, Bernice P. "Emphysema: Fighting to Breathe." HealthToday Philippines, 2011.
Warning: These citations may not always be 100% accurate.