Planetree is a nonprofit patient-centered care organization of hospitals and other health care organizations founded in 1978. Now headquartered in Derby, Connecticut, in the United States, the organization was founded by Angelica Thieriot in San Francisco after her frustration of impersonal treatment as a patient.
Planetree also includes member hospitals in Brazil, Japan, Netherlands and Canada.
- "Planetree Pioneers". Planetree. Archived from the original on 2 June 2013. Retrieved 23 July 2013.
-  (article for sale) Boute, Brenda J., "Anna Jaques aims to paper patients" article in The Boston Globe, August 10, 2003, accessed April 14, 2007: "the Planetree Alliance, named after the sycamore, or plane tree, that Hippocrates sat under when He taught medicine, has been around since 1978 [...]" quote seen free at Google News Archives search result page: