Berkmann, S., J. Fandino, B. Müller, K. F. Kothbauer, C. Henzen, and H. Landolt. “Pituitary Surgery: Experience from a Large network in Central Switzerland”. Swiss Medical Weekly, vol. 142, no. 3940, Sept. 2012, p. w13680, doi:10.4414/smw.2012.13680.