Table 6 Initial and follow-up serum copper and zinc and 24-h urine zinc levels in Cases 3, 8, 9, and 12, along with initial and follow-up serum copper and zinc levels reported by Prodan et al.3

Subject	Time	Serum copper, 0.75–1.45 μg/mL, 0.75–1.55 μg/mL^*	Serum zinc, 0.66–1.10 μg/mL, 0.70–1.50 μg/mL^*	24-h urine zinc, 300–600 μg/specimen
Normal values indicated in column headings.
* The reference range provided by Prodan et al.3 is slightly different from the reference range used in the authors’ laboratory.
Case 3	Initial	0.00	1.09	2,875
	6 wk	0.28	1.11	2,238
Case 8	Initial	0.05	1.46	3,500
	18 wk	0.91	2.08	2,265
Case 9	Initial	0.11	1.47	2,060
	16 wk	0.34	1.59	2,549
Case 12	Initial	0.31	0.99	1,355
	6 wk	0.59	1.10	2,237
Ref. 3, Case 1	Initial	0.05	1.74	NA
	8 wk	1.06	3.33	NA
Ref. 3, Case 2	Initial	0.00	1.92	NA
	8 wk	0.76	2.23	NA