Lawson M S, Clayton B E, Delves H T, Mitchell J D
Arch Dis Child. 1977 Jan;52(1):62-7. doi: 10.1136/adc.52.1.62.
In an earlier study (Alexander et al., 1974) it was shown that the mineral mixture used in association with a synthetic diet was deficient in zinc, copper, iron, and manganese. A new mixture containing appropriately increased amounts of these trace metals has now been evaluated by means of metabolic balance studies carried out on children with phenylketonuria. This new mixture was shown to be satisfactory for zinc, copper, and iron, but minor changes have been recommended for manganese.
在早期的一项研究中（亚历山大等人，1974年）表明，与合成饮食搭配使用的矿物质混合物缺乏锌、铜、铁和锰。现在，通过对苯丙酮尿症患儿进行的代谢平衡研究，对一种含有适量增加这些微量金属的新混合物进行了评估。结果表明，这种新混合物对锌、铜和铁来说是令人满意的，但对于锰，建议进行一些小的调整。
