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

Web-based and Mobile Health Interventions 

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Works citing "Cardiovascular Health Effects of Internet-Based Encouragements to Do Daily Workplace Stair-Walks: Randomized Controlled Trial"

Lars Louis Andersen, Emil Sundstrup, Marianne Boysen, Markus Due Jakobsen, Ole Steen Mortensen, Roger Persson
J Med Internet Res 2013 (Jun 21); 15(6):e127 

According to Crossref, the following articles are citing this article (DOI 10.2196/jmir.2340):

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

1. Deitz D, Cook RF, Hersch RK, Leaf S. Heart Healthy Online. Journal of Occupational and Environmental Medicine 2014;56(5):547 [CrossRef]