1. Radiographic Atlas of Skeletal Development of the Hand and Wrist;Greulich,1971
2. A History of the Study of Human Growth;Tanner,1981
3. Assessment of Skeletal Maturity and Prediction of Adult Height (TW2 Method);Tanner,1975
4. Assessment of Skeletal Maturity and Prediction of Adult Height (TW3 Method);Tanner,2001
5. Reliability of skeletal age assessments;Johnson;Am J Roentgenol Radium Ther Nucl Med.,1973