V. Sivasubramaniyan & K. Venkataramaniah. Research on Non-Invasive Quantitative Characterization of Skeletal Metastasis in Carcinoma Prostate by Tc99m MDP Bone Scans Using Dr. V. Siva’s Retention Ratio in Correlation With Serum PSA Levels. RTCMS-V10 2021, 23-34.