Prevalence and sex-related odds of comorbidity in patients starting long-term oxygen therapy for chronic obstructive pulmonary disease, 1992–2008.
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Percentages may not add up to 100 due to rounding.*Odds ratio adjusted for age, smoking history and year of starting long-term oxygen therapy.†Entities with significant sex-related difference in odds.
创建时间：
2015-12-02
