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This is the third of a series of atlases attempting to provide standards of reference for determination of maturational status in selected portions of the skeleton. Like its predecessors relating to the hand (Greulich and Pyle) and the knees (Pyle and Hoerr) it utilizes the "inspectional method" for recognition of "maturity indicators." Maturity indicators are defined as "osseous features in the contour of a developing bone which can be used as a reliable maturational landmark in the sequence of ossification of the bone." The sequence is not appreciably altered by race or sex. The methods by which the authors selected specific maturity indicators are described in the text accompanying the 31 plates, which cover the range from 38 weeks gestational age to 18 years and add the foot of a healthy young woman aged 28 years. During the first year of life, standards are provided at approximately monthly intervals. Six-month
SILVERMAN FN. Radiographic Atlas of Skeletal Development of the Foot and Ankle. Am J Dis Child. 1962;104(1):106. doi:10.1001/archpedi.1962.02080030108024
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