Hello,
I did a literature search as well to find additional references. I used BioMed Central, an open access resource, meaning that every article is available for free for everyone and PubMed, an authoritative source to find scientific articles about health. Every free article has the following note: [FREE]. If you cannot access some articles you need, you can try to get them from your local public library or, maybe, from another colleague from Radical Reference since the access I have at work doesn't allow me to do so.
BioMed Central
Search: "health care" OR "access to care" OR medication* OR "prescription drug" OR "prescription drugs" OR meds (Any word) in Citation and abstract , and prison OR prisoner* OR inmate* OR convict* OR incarcerated (Any word) in Citation and abstract)
Most relevant results: