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. Author manuscript; available in PMC: 2014 Aug 8.
Published in final edited form as: J Occup Environ Med. 2004 Mar;46(3):241–248. doi: 10.1097/01.jom.0000116900.49159.03

Fig. 2.

Fig. 2

Relationship between erythrocytic SOD activity and welder’s professional years. SOD activity was determined using a commercially available assay kit. Data were analyzed by a linear regression (r = −0.211, P = 0.105, n = 37).