Perceived barriers to the implementation of clinical pharmacy services in a metropolis in Northeast Brazil. - Santos Júnior, Genival Araujo dos; Ramos, Sheila Feitosa; Pereira, André Mascarenhas; Dosea, Aline Santana; Araújo, Elton Matos; Onozato, Thelma; Pimentel, Déborah Mônica Machado; Jr.Lyra, Divaldo Pereira de (PLoS ONE, 2018)