1. Births: final data for 2014;Hamilton;Natl Vital Stat Rep,2015
2. Bushman J The role of certified nurse-midwives and certified midwives in ensuring women's access to skilled maternity care http://www.midwife.org/acnm/files/ccLibraryFiles/Filename/000000005794/MaternityCareWorkforce-11-18-15.pptx
3. Forging the future: maintaining midwifery momentum in the next decade;Murphy;J Midwifery Womens Health,2015
4. Organizational climate in primary care settings: implications for nurse practitioner practice;Poghosyan;JAm Assoc Nurse Pract,2013
5. Friedberg MW Chen , PG Aunon , FM Factors affecting physician professional satisfaction and their implications for patient care, health systems, and health policy http://www.rand.org/content/dam/rand/pubs/research_reports/RR400/RR439/RAND_RR439.pdf