During the last few years, a series of papers has been published from this institution on the subject of rickets. They have comprised a consideration of the relative importance of various signs which have been associated for years with rickets, as well as those which have been brought to light more recently, such as the changes in the roentgenograms of the epiphyses and the diminution of the inorganic phosphorus of the blood. The most recent paper of this group was that of Hess and Weinstock,1 which considers the evolution of the carpal centers from a racial aspect, and which pointed out the fact that negro infants develop carpal centers earlier than do white infants. These authors further confirmed the observation of others to the effect that female infants develop centers somewhat earlier than the males, and drew attention to the high percentage of infants who show carpal centers at
GOLDBERGER H, MELLION J. IS THE DEVELOPMENT OF THE CARPAL CENTERS DELAYED IN RICKETS? Am J Dis Child. 1926;31(1):58–64. doi:10.1001/archpedi.1926.04130010065008
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