Soontrapa, S., Chowchuen, P., Srinakarin, J., & Soontrapa, S. (2013). Diagnostic Reliability of the Singh index: Femoral Neck Osteoporosis. Srinagarind Medical Journal, 19(4), 215–219. Retrieved from https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/14555