Table 2.

Concentration of Al, Cu, Mg, and Zn in intervertebral disc (Kubaszewski et al. 2014)

Element	AM	S.D.	Range
	[μg g−1 d.w.]
Al	0.664	0.289	0.166–1.271
Cu	3.41	4.045	0.97–23.64
Mg	800.1	525.5	182.6–2132
Zn	39.60	35.95	10.56–184.5

AM arithmetic mean, S.D. standard deviation