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Browse 4,312 clinical trials for asthma. Find studies that match your criteria and connect with research centers.
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Showing 3661-3680 of 4,312 trials
NCT01812681
Experimental and observational studies have shown that vitamin D deficiency may be associated with an increased risk for non-bone diseases and/or abnormal development for the other systems of fetus. The aim of this study is to determine the relationship between cord blood 25-hydroxyvitamin D (25 (OH) D) concentrations and the subsequent risk of morbidities including RDS, PDA, NEC, BPD AND ROP in preterm infants.
NCT01248065
The purpose of the study is to find out if taking vitamin D in addition to an asthma controller medication helps to prevent worsening of asthma symptoms and asthma attacks.