Develop a minimum of 600 words explaining the advocacy efforts of Lillian Wald,

Develop a minimum of 600 words explaining the advocacy efforts of Lillian Wald, public health nurses in urban and rural settings, and nurse practitioners used to effect change in health care.
Submission Instructions:
Your post should be at least six hundred words, formatted, and cited in the current APA style with support from at least three academic sources. 
You must submit your writing double-spaced, in Times New Roman, Arial, or Courier New font, with font size 12.
Pay attention to grammar rules (spelling and syntax).
Your work must be original and must not contain material copied from books or the Internet.
When citing the work of other authors, including citations and references, use APA style to respect their intellectual property and avoid plagiarism.
Your assignment will be run through TurnItIn to check for plagiarism.