H Nilgens

Normal and abnormal pulmonary ventilation: visualization at hyperpolarized He-3 MR imaging.

A Potthast, M V Knopp, M Thelen, 1996, Radiology.

Imaging of the lungs using 3he MRI: Preliminary clinical experience in 18 patients with and without lung disease

M Thelen, H. Kauczor, K. Kreitner, 1997, Journal of magnetic resonance imaging : JMRI.