Extremely low-frequency magnetic fields and survival from childhood acute lymphoblastic leukemia: an international follow-up study

J Schüz, K Grell, S Kinsey, M S Linet, M P Link, G Mezei, B H Pollock, E Roman, Y Zhang, M L McBride, C Johansen, C Spix, J Hagihara, A M Saito, J Simpson, L L Robison, J D Dockerty, M Feychting, L Kheifets, K Frederiksen