the commutability assessment of eqa materials and certified ......1 ying yan, yungang pur qichen...
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National EQA programs for HbA1c
23 11 33 61 84 120211 258
333 389500
641800
1037
12481338
1469
1644
1839
2097
2915
0
500
1000
1500
2000
2500
3000
3500
the number of participating laboratories