Lang, Phung, Christoph Hatz, and Fabio Valeri. “Reply to Letter to the Editor from S. C. Arya and N. Agarwal”. Swiss Medical Weekly 145, no. 0708 (February 8, 2015): w14025. Accessed November 21, 2024. https://smw.ch/index.php/smw/article/view/1994.