Bagnato, G., Ruggeri, R., Certo, R., Piccione, C., Carerj, S., & Roberts, W. (1969). Serum thyroxine levels are associated with increased systolic pulmonary arterial pressure in systemic sclerosis. Clinical and Experimental Rheumatology, 35 Suppl 106(4), 220. Retrieved from http://www.clinexprheumatol.org/pubmed/find-pii.asp?pii=28598782 (Original work published 1969)

Giuffrida, G., Bagnato, G., Campennì, A., Giovinazzo, S., Keller, K., Alibrandi, A., … Ruggeri, R. (2020). Non-specific rheumatic manifestations in patients with Hashimoto’s thyroiditis: a pilot cross-sectional study. Journal of Endocrinological Investigation, 43(1), 87-94. https://doi.org/10.1007/s40618-019-01083-w