Freire de Araújo Patrício, Anna Cláudia, Brenda Feitosa Lopes Rodrigues, Milena Azevedo Minhaqui Ferreira, Ruth Alves Gomes, Thays Domingos de Brito, Ana Rebeca Soares de Medeiros, Iana Virgínia Bezerra Félix, & Jiovana de Souza Santos. " Application of Mental Health Scale and Perceived Stress in Elderly Assisted by Basic Health Units." International Archives of Medicine [Online], 9 (2016): n. pag. Web. 17 Sep. 2019