A blinded comparison of clinical and echocardiographic evaluation of the preterm infant for patent ductus arteriosus.
J Paediatr Child Health. 1994 Oct;30(5):406-11. doi: 10.1111/j.1440-1754.1994.tb00689.x.
J Paediatr Child Health. 1994.
PMID: 7833075
Clinical Trial.