Sites:
Copper: Overview about the trace element, deficiency and Menkes' Syndrome, safety issues, suggested intake, and food sources.Copper: Explains about copper, sources, deficiency, supplements and Menkes Syndrome.
Copper: Contains suggestions on increasing trace elements intake, good food sources, and recommended dosage.
Copper Trace Element: Explains basic information such as role element plays in body, food sources, suggested requirements, and deficiency indications.
Copper- Nutrition.org: Provides trace elements functions, deficiency indications, and possible food sources.
Copper-Trace Minerals: In depth essay explaining proper dosage, overdosage symptoms, necessity of the trace element, and functions.