NLS (Non-linear Diagnostics) is presented as a non-invasive imaging method for diagnosing a wide range of lung diseases. The articles claim that NLS can detect diffuse infiltrative lung diseases, lung abscesses, pleural empyema, pulmonary gangrene, COPD, emphysema, and obliterating bronchiolitis. According to the authors, NLS provides detailed three-dimensional visualization, monitors disease progression, and evaluates treatment effectiveness. It is also described as having higher sensitivity and specificity than conventional chest radiography and, in some cases, standard CT. The method is promoted as useful for guiding biopsies and assessing disease activity. However, these claims are not supported by widely accepted scientific evidence, and NLS/Metatron technology is not recognized as a validated diagnostic tool in modern evidence-based medicine.