Pulmonary atresia. Pulmonary atresia In pulmonary atresia, the valve that lets blood flow from the heart to the lungs isn't formed properly. Instead, some blood may reach the lungs via a temporary connection (ductus arteriosus) between the baby's aorta and the pulmonary artery.
The only UK referendum regarding the Britain's relationship with the European Union was put to the UK electorate in 1975 when a majority of those voting endorsed UK membership of the European Economic Community, which subsequently evolved into the European Union.s of October 2015, there are two formal Leave the EU groups and one formal Remain a Member campaign group. A cross-party group campaigning for Britain to remain a member is called Britain Stronger in Europe, while two campaigns promoting exit are Leave.EU (led by UKIP) and the cross-party Vote Leave groups.
The United Kingdom (UK) intends to withdraw from the European Union (EU), a process commonly known as Brexit, as a result of the June 2016 referendum in which 51.9% of those who turned out voted to leave the EU. The separation process is complex, causing political and economic changes for the UK and other countries.