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Quality of routine spirometry tests in Dutch general practices.
Schermer TR, Crockett AJ, Poels PJ, van Dijke JJ, Akkermans RP, Vlek HF, Pieters WR. Schermer TR, et al. Among authors: vlek hf. Br J Gen Pract. 2009 Dec;59(569):e376-82. doi: 10.3399/bjgp09X473088. Br J Gen Pract. 2009. PMID: 19889258 Free PMC article.