third stage physiological third stage http://www.nct.org.uk/birth/third-stage-labour controlled cord traction http://www.nct.org.uk/birth/third-stage-labour http://www.nct.org.uk/birth/third-stage-labour http://www.nct.org.uk/birth/third-stage-labour http://www.nct.org.uk/birth/third-stage-labour http://www.nct.org.uk/birth/third-stage-labour