The need for a health worker to assist the physician.
D002170:Canada; D003191:Comprehensive Health Care; D003479:Curriculum; D004509:Education, Nursing, Continuing; D009726:Nurses / Q000706:statistics & numerical data*; D010823:Physician Assistants / Q000193:education / Q000600:supply & distribution*; D011320:Primary Health Care; D014495:Universities; D000078329:Workforce