Vieira, Maria do Rosário, J Picão Fernandes, Manuela Pecegueiro, Amélia Baptista, and Estela Monteiro. 1979. “Primary Biliary Cirrhosis Associated With Rheumatic Arthritis and Sjögren’s Syndrome”. Acta Médica Portuguesa 1 (2). Lisbon, Portugal:209-14. https://doi.org/10.20344/amp.4333.