This paper is in the following e-collection/theme issue:

Mobile Health (mhealth) 

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Works citing "Assessing Adolescent Asthma Symptoms and Adherence Using Mobile Phones"

Shelagh A Mulvaney, Yun-Xian Ho, Cather M Cala, Qingxia Chen, Hui Nian, Barron L Patterson, Kevin B Johnson
J Med Internet Res 2013 (Jul 17); 15(7):e141 

According to Crossref, the following articles are citing this article (DOI 10.2196/jmir.2413):

(note that this is only a small subset of citations)

1. Fu J, McDonald VM, Wang G, Gibson PG. Asthma control. Current Opinion in Pulmonary Medicine 2014;20(1):1 [CrossRef]