Johannes CB, Schneider GA, Dube TJ, Alfredson TD, Davis KJ, Walker AM. The risk of nonvertebral fracture related to inhaled corticosteroid exposure among adults with chronic respiratory disease. Chest. 2005 Jan 1;127(1):89-97.
Watts (Wideman) K, McAvinchey G, Quiroz R. Language services in survey research. ATA Chronicle. 2002 Jul;31(7):36-7.