3Wang Y, Harvey CB. Hollox EJ,et al. The genetically programmed down-regulation of lactase in children[J]. Gatroenterology, 1998,116 (114) : 1230-1236.
6Lanzkowsky P, Karaaclin G, Miller F, et al. Disaccharidase values in Iron-deficient infants [J]. Journal of Pediatrics, 1981,123(99):605-608.
7Sadowitz PD, Oski FA. Iron Status and infant feeding practices in an urban ambulatory center[J]. Pediatrics, 1983,72 (1):33-36.
8Moynahan EJ, Barnes PM. Zinc deficiency and a synthetic diet for lactose intolerance[J]. Lancet, 1973,1 : 676-677.
9Mutch PB, Hurley LS. Effect of zinc deficiency during lactation on postnatal growth and development of rats [J]. Journal of nutrition,1974,104(4) :828-842.
10Melvin B, Heyman MD. Lactose intolerance in infants , children ,and adolescents[J]. American Academy of Pediatrics,2006, 118(3) : 1279-1286.
