[BERT-91b]
Y. Berthezène, V. Vexler, O. Clement, A. Muehler, M. Modeley, D. Price, and R. C. Brasch,
"Magnetic resonance imaging of lung ventilation and perfusion",
Tenth Annual Meeting of the Society for Magnetic Resonance in Medicine, San Francisco, USA, pp. 209, 1991.