Persson, L. J. P., Aanerud, M., Hiemstra, P. S., Hardie, J. A., Bakke, P. S., & Eagan, T. M. L. (2012). Chronic Obstructive Pulmonary Disease Is Associated with Low Levels of Vitamin D. Public Library of Science.

Persson, Louise Jeanette Pauline, Marianne Aanerud, Pieter Sicco Hiemstra, Jon Andrew Hardie, Per Sigvald Bakke, و Tomas Mikal Lind Eagan. Chronic Obstructive Pulmonary Disease Is Associated With Low Levels of Vitamin D. Public Library of Science, 2012.

Persson, Louise Jeanette Pauline, et al. Chronic Obstructive Pulmonary Disease Is Associated With Low Levels of Vitamin D. Public Library of Science, 2012.