The incidence of ductus closure, as determined by echocardiography, following the last dose of study drug [clinicaltrials_resource:f5fda8198413e87d6694c1846c50054e]

The incidence of ductus closure, as determined by echocardiography, following the last dose of study drug [clinicaltrials_resource:f5fda8198413e87d6694c1846c50054e]