The incidence of ductus closure, as determined by echocardiography, following the last dose of study drug [clinicaltrials_resource:f15878d3902cea068850eb40b84b7f49]

The incidence of ductus closure, as determined by echocardiography, following the last dose of study drug [clinicaltrials_resource:f15878d3902cea068850eb40b84b7f49]