Pimenta, Graça Maria Ferreira, et al. “Profile of the Caregiver of Dependent Elderly Family Members in a Home Environment in the City of Porto, Portugal”. Revista Da Escola De Enfermagem Da USP, vol. 43, no. 3, Sept. 2009, pp. 609-14, https://doi.org/10.1590/S0080-62342009000300016.