Median, minimum and maximum value of means Br, Cu, Fe, Rb, Sr, and Zn contents in normal thyroid according to data from the literature in comparison with our results (mg/kg, dry mass basis).

Table 3: Median, minimum and maximum value of means Br, Cu, Fe, Rb, Sr, and Zn contents in normal thyroid according to data from the literature in comparison with our results (mg/kg, dry mass basis).

Element	Published data [Reference]			This work
	Median of means (n)*	Minimum of means M or M ± SD, (n)**	Maximum of means M or M ± SD, (n)**	M ± SD
Br	18.1 (11)	5.12 (44) [25]	284 ± 44 (14) [26]	20 ± 13
Cu	6.1 (57)	1.42 (120) [27]	220 ± 22 (10) [28]	4.2 ± 1.7
Fe	252 (21)	56 (120) [27]	2444 ± 700 (14) [26]	223 ± 104
Rb	12.3 (9)	≤ 0.85 (29) [29]	294 ± 191 (14) [26]	6.6 ± 2.5
Sr	0.73 (9)	0.55 ± 0.26 (21) [30]	46.8 ± 4.8 (4) [28]	4.7 ± 3.1
Zn	118 (51)	32 (120) [27]	820 ± 204 (14) [26]	89 ± 43

M: Arithmetic mean; SD: Standard Deviation; (n)*: Number of all references; (n) **: Number of samples.