Utilization of available "nurse power" in Public Health.
D000367:Age Factors; D000368:Aged; D006280:Health Workforce / Q000706:statistics & numerical data; D006801:Humans; D008875:Middle Aged; D009726:Nurses / Q000706:statistics & numerical data*; D009743:Nursing, Practical; D011635:Public Health Administration; D011637:Public Health Nursing / Q000193:education; D012573:School Nursing; D014481:United States