Development and validation of an instrument to measure the effects of a mistletoe preparation on quality of life of cancer patients: the Life Quality Lectin-53 (LQL-53) Questionnaire.
Kirchberger I, Wetzel D, Finger T. Development and validation of an instrument to measure the effects of a mistletoe preparation on quality of life of cancer patients: the Life Quality Lectin-53 (LQL-53) Questionnaire. Qual Life Res. 2004 Mar; 13(2):463-79.