Impact of Age and Sex on Outcomes and Hospital Cost of Acute Asthma in the United States, 2011-2012. oleh Joe G Zein, Belinda L Udeh, W Gerald Teague, Siran M Koroukian, Nicholas K Schlitz, Eugene R Bleecker, William B Busse, William J Calhoun, Mario Castro, Suzy A Comhair, Anne M Fitzpatrick, Elliot Israel, Sally E Wenzel, Fernando Holguin, Benjamin M Gaston, Serpil C Erzurum, Severe Asthma Research Program