The calculators which are provided are freeware for personal use only. They are 
    not public domain software and may not be sold or used for commercial purposes.
    Permission to use and backup this software for any non-commercial purpose, 
    without fee, and without a written agreement is hereby granted.
    Permission to distribute this software for any non-commercial purpose, without 
    fee, and without a written agreement is hereby granted, provided that a 
    reference to the following website and the entire License and Disclaimer are 
    provided with all distributed copies:
    http://www.eortc.be/tools/recgbmcalculator
    The author has made every effort to ensure that the information provided by this 
    software is accurate and conforms to the methods described in the publication.
    However, the survival estimates published in the paper and which are estimated 
    with these calculators may be higher than those found in current clinical 
    practice. In addition, a patient's prognosis may depend on other factors than 
    those taken into account here. Thus any decisions concerning patient care should 
    not be based only on the use of these calculators, but should also take into 
    account the patient's past history and other current patient and tumor 
    characteristics. As medical science is constantly changing and human error is 
    always possible, the author and the EORTC do not warrant the calculators' 
    accuracy nor are they responsible for any omissions, errors or outcomes 
    resulting from the use of these calculators.
    In no event shall either the author or the EORTC be liable to any party for any 
    direct, indirect, special, incidental, or consequential damages, including lost 
    profits, arising from the use of this software even if
    they have been advised of the possibility of such damage.
    The author and the EORTC specifically disclaim any warranties, including but not 
    limited to, the implied warranty of fitness for calculating the probabilities 
    survival for patients with recurrent GBM. The software provided hereunder is on 
    an “as is” basis and neither the author nor the EORTC have any obligations to 
    provide maintenance, support, updates, enhancements or modifications.