Yao NS, Wu YY, Janckila AJ, Ku CH, Hsieh AT, Ho CL, Lee SH, Chao TY. Serum tartrate-resistant acid phosphatase 5b (TRACP5b) activity as a biomarker for bone metastasis in non-small cell lung cancer patients. Clin Chim Acta. 2011 Jan 14;412(1-2):181–5. doi: 10.1016/j.cca.2010.09.038. PMID: 20932965.