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. 2013 Dec 12;157(1):36–44. doi: 10.1007/s12011-013-9870-x

Table 5.

The calculated % of coverage of an infant's requirement of Cu and Zn from breast milk

	Cu	Zn
Polish norm, mg/day [33]	0.2–0.3	2.0
	% of Polish norm
Infant's age
1 month	59.39^b	117.6^d
3 months	60.18^b	68.52^c
6 months	61.69^b	34.43^b
12 months	29.11^a	20.13^a
WHO norm, mg/day [40]	0.33–0.62	5.33–5.6
	% of WHO norm
Infant's age
1 month	36.00^bc	44.36^d
3 months	36.47^c	25.86^c
6 months	33.35^b	22.21^b
12 months	9.701^a	7.189^a

^a,b,c,dIn the same column, values with different superscripts differ significantly, p < 0.05