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

Mobile Health (mhealth) 

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Works citing "A Spanish Pillbox App for Elderly Patients Taking Multiple Medications: Randomized Controlled Trial"

José Joaquín Mira, Isabel Navarro, Federico Botella, Fernando Borrás, Roberto Nuño-Solinís, Domingo Orozco, Fuencisla Iglesias-Alonso, Pastora Pérez-Pérez, Susana Lorenzo, Nuria Toro
J Med Internet Res 2014 (Apr 04); 16(4):e99 

According to Crossref, the following articles are citing this article (DOI 10.2196/jmir.3269):

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

1. Azevedo ARP, de Sousa HML, Monteiro JAF, Lima ARNP. Future perspectives of Smartphone applications for rheumatic diseases self-management. Rheumatology International 2014; [CrossRef]