AdvertisementAsthma On The Rise: 25 Million In The U.S. AffectedJanuary 13, 2011Scott HensleyfacebookEmailNurse Maria Aguilar encourages teenager Jesus Ayala during a test of his lung capacity at a Los Angeles clinic in 2007. (Getty Images)
Nurse Maria Aguilar encourages teenager Jesus Ayala during a test of his lung capacity at a Los Angeles clinic in 2007. (Getty Images)