Sanghoon Lee Guo, W. J., Lee, S. H., & Gardner, R. P. (2004). The Monte Carlo approach MCPUT for correcting pile-up distorted pulse-height spectra. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 531(3), 520–529. https://doi.org/10.1016/j.nima.2004.05.089 Lee, S. H., Gardner, R. P., & Todd, A. C. (2001). Preliminary studies on combining the K and L XRF methods for in vivo bone lead measurement. Applied Radiation and Isotopes, 54(6), 893–904. https://doi.org/10.1016/s0969-8043(00)00350-x Lee, S. H., & Gardner, R. P. (2000). A new G-M counter dead time model. APPLIED RADIATION AND ISOTOPES, Vol. 53, pp. 731–737. https://doi.org/10.1016/S0969-8043(00)00261-X Ao, Q., Lee, S. H., & Gardner, R. P. (1997). Development of the specific purpose Monte Carlo code CEARXRF for the design and use of in vivo X-ray fluorescence analysis systems for lead in bone. APPLIED RADIATION AND ISOTOPES, 48(10-12), 1403–1412. https://doi.org/10.1016/S0969-8043(97)00136-X