Two randomized trials for alternating polychemotherapy of small cell lung cancer - Havemann, K.; Gropp, C.; Klapsing, J.; Viktor, N.; Holle, R.; Drings, P.; Manke, H. G.; Hans, K.; Schroeder, M.; Heim, M. (Springer, 1986)
http://dx.doi.org/10.1007/BF00647450
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