The bone maturation of the wrist and hand in a sample of children aged from 0 to 6 years of age is described, according to the Greulich and Pyle's atlas (G ), and the RUS (large bones), CARP (carpal bones) and TW20 (twenty bones) scores of Tanner and Whitehouse. Chilean male infants and children mature similar to GP standars during the first year, they are clearly retarded after this age. Chilean female infants and children mature similar to GP standars until the second year, they arc moderately retarded in the other part of the period, it seems that they equalize the GP standards at the age of seven. It is difficult to explain this pattern by assuming that the Chilean sample is undernourrished...
