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

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