Fig. 4From: Fractionated carbon ion irradiations of the rat spinal cord: comparison of the relative biological effectiveness with predictions of the local effect modelSummarized dose-response curves after 6 fractions of carbon ions as a function of LET together with the previously measured photon curve [10]. Error bars indicate 1 SE of TD50. Error bars with caps are based on the fit while those without were estimated (see text)Back to article page