The following are links from Life Matters Media and featured on their website June 28 and February 2nd.
A JAMA Viewpoint article of 1/19/2016 was co-authored by of team of medical researchers at University of Pennsylvania. This article was critical of the nationwide expansion of POLST.
Dr. Susan Tolle is recognized as a POLST pioneer. She was recently contacted by Life Matters Media for an interview which you can find at the site shown below. In the interview Dr. Tolle comments on POLST criticism and also discusses the effectiveness of electronic POLST.
You can read more about the JAMA perspective at this Life Matters Media site.