Cited 7 times since 2007 (0.4 per year) source: EuropePMC Journal of clinical oncology : official journal of the American Society of Clinical Oncology, Volume 25, Issue 4, 1 1 2007, Pages 464; author reply 465 Stereotactic radiotherapy for centrally located early-stage lung tumors. Senan S, Haasbeek NJ, Smit EF, Lagerwaard FJ