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

Web-based and Mobile Health Interventions 

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Works citing "Long-Term Outcomes of Internet-Based Self-Management Support in Adults With Asthma: Randomized Controlled Trial"

Johanna L van Gaalen, Thijs Beerthuizen, Victor van der Meer, Patricia van Reisen, Geertje W Redelijkheid, Jiska B Snoeck-Stroband, Jacob K Sont, SMASHING Study Group
J Med Internet Res 2013 (Sep 12); 15(9):e188 

According to Crossref, the following articles are citing this article (DOI 10.2196/jmir.2640):

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

1. Jones JE. A “call to arms” to address epilepsy and its comorbidities. Epilepsy & Behavior 2014;34:137 [CrossRef]