ISSN 0021-7557. <a href="http://dx.doi.org/10.2223/JPED.1816.OBJECTIVE:">http://dx.doi.org/10.2223/JPED.1816.OBJECTIVE:</a> To investigate the role of dietary calcium and vitamin D in the process of growth and development of children and adolescents, focusing in particular on the prevention and treatment of delayed growth caused by nutritional deficiency.