| Source | Match | ReputationScore* | 
|---|---|---|
                Exogenous sex steroid hormones and asthma in females of reproductive age
                
                   Exogenous sex steroid hormones and asthma in females of reproductive age: a population-based prospective cohort study using the Optimum Patient Care Research Database (OPCRD) <p>Background: Despite well-described sex differences in asthma incidence, 
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*ReputationScore indicates how established a given datasource is. Find out more.