Validating sampling methods for measurement of circulating matrix metalloproteinase-9 and tissue inhibitor of metalloproteinase-1.

@article{Zhang2010ValidatingSM,
  title={Validating sampling methods for measurement of circulating matrix metalloproteinase-9 and tissue inhibitor of metalloproteinase-1.},
  author={Ru-yuan Zhang and Wei Cui and Kai-jun Zhao and Yao-qing Tang and Lei Erbao Li},
  journal={Pancreas},
  year={2010},
  volume={39 6},
  pages={937; author reply 937-8}
}