Johan Kofstad

Vitamin D deficiency, bone mineral density and weight in patients with advanced pulmonary disease

M. Vatn, J. Halse, E. Haug, 2004, Journal of internal medicine.

Serum amino acids in relation to nutritional status, lung function and energy intake in patients with advanced pulmonary disease.

M. Vatn, J. I. Pedersen, J. Boe, 2000, Respiratory medicine.