1. Heart Disease in the Newborn;Lees,1977
2. The blue baby. Circulation or ventilation or both?;Tooley;N. Engl. J. Med.,1972
3. Neonatal cardiopulmonary distress without congenital heart disease;Emmanouilides;Paediatrician,1975
4. “P.F.C.” syndrome (persistence of the fetal circulation);Gersony;Circulation,1969