“Proton Magnetic Resonance Spectroscopy of Sputum for the Non-Invasive Diagnosis of Lung Cancer: Preliminary Findings ”. Journal of Analytical Oncology 1, no. 1 (January 28, 2012): 14–18. Accessed April 18, 2026. https://neoplasiaresearch.com/index.php/jao/article/view/116.