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Quality of life assessment in breast cancer patients: the need for stratification of patients, and of the use of appropriate questionnaires.

Sir, The role of interventional bronchoscopy with laser, bronchial dilatation or stent insertion is well-established for the palliative treatment of malignant endobronchial lesions as well as for the management of benign central airway lesions. Therapeutic bronchoscopy has also been reported in patients with malignant disease followed by surgery with Additionally, we seek to know the mode of data collection with the use of the EORTC-QLC-C30 questionnaire. It is unlikely that the patients were provided the original version of the questionnaire, which is available in the English language. If translated versions were used, it is of prime importance that validated translations were used.