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. 2013 Dec 6;8(12):e81545. doi: 10.1371/journal.pone.0081545

Figure 1. Selection of study population.

Figure 1

Oral glucose tolerance tests of patients with prior steroid therapy or lung transplantation were excluded as well as tests in pregnant patients. The final study population comprised 5,179 oral glucose tolerance tests performed in 1,658 cystic fibrosis patients. Abbreviations: CF = cystic fibrosis, OGTT = oral glucose tolerance test.