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Emergency responders not portrayed in the film; only medical professionals involved in long-term patient care are addressed. 

The main point of the article is that private ambulance and fire department agencies have questionable policies and business practices that hurt not only patients but also their employees. It's supported with anecdotal evidence following several agencies that have filed for bankruptcy, going over incidents of lateness, understaffing, lack of supplies, and aggressive billing or lawsuits to get payments from patients.

Almost all of the references cited in the bibliography were taken from Google Scholar, implying that the authors used this database to collaborate on the article through the internet. Many of the articles cited were from Paul Farmer's own works, so he also seems like the main contributor to the article.