Moinzadeh, P., Riemekasten, G., Blank, N., Henes, J., Koetter, I., Siegert, E., Pfeiffer, C., Zeidler, G., Schmalzing, M., Guenther, C., Susok, L., Worm, M., Kreuter, A., Sunderkoetter, C., Mueller-Ladner, U., Juche, A., Aberer, E., Schmeiser, T., Krieg, T., Kuhr, K., & Hunzelmann, N. (n.d.). sAT0506 Ssc in older age: frequent and with a different phenotype. data of the german network for systemic sclerosis. Annals of the rheumatic diseases, 77, 1109. http://access.bl.uk/ark:/81055/vdc_100144724211.0x000054