Items where Author is "Helmke, K."

Article

Bielack, S. S. and Kempf-Bielack, B. and Branscheid, D. and Carrle, D. and Friedel, G. and Helmke, K. and Kevric, M. and Jundt, G. and Kühne, T. and Maas, R. and Schwarz, R. and Zoubek, A. and Jürgens, H.. (2009) Second and subsequent recurrences of osteosarcoma: presentation, treatment, and outcomes of 249 consecutive cooperative osteosarcoma study group patients. Journal of clinical oncology : official journal of the American Society of Clinical Oncology, Vol. 27. pp. 557-565.