Mugueta-Aguinaga I, Garcia-Zapirain B (2017). „Is Technology Present in Frailty? Technology a Back-up Tool for Dealing with Frailty in the Elderly: A Systematic Review”. Aging and Disease. 8 (2): 176—195. PMID28400984. doi:10.14336/AD.2016.0901.
Mugueta-Aguinaga I, Garcia-Zapirain B (2017). „Is Technology Present in Frailty? Technology a Back-up Tool for Dealing with Frailty in the Elderly: A Systematic Review”. Aging and Disease. 8 (2): 176—195. PMID28400984. doi:10.14336/AD.2016.0901.