Effects of intravenous magnesium in suspected acute myocardial infarction: overview of randomised trials. by Teo, K, Yusuf, S, Collins, R, Held, P, Peto, R

Degenerative diseases of the lumbar spine. Comparison of the multiecho data image combination sequence with magnetization transfer saturation pulse versus lumbar myelography/postmy... by Dorenbeck, U, Schreyer, A, Grunwald, I, Held, P, Feuerbach, S, Seitz, J