“…Copper deficiency is seen relatively more often in infants, in addition to other conditions described in the introduction of the authors' article [2], In infants hypocupremia usually goes together with hypoferremia, hypoproteinemia (hypoalbuminemia), osteoporosis, long bone changes, hypotonia, depigmentation of the skin and hair [3,4]. Familial benign copper deficiency has also been reported [5].…”