The Chant of Jimmy Blacksmith[?] by Thomas Keneally (1972), also filmed. Written through the eyes of an exploited Aborigine who explodes in rage. Based on an actual incident. Keneally has said he would not now presume to write in the voice of an Aborigine, but would have written the story as seen by a white character.
... countries, after losing hope with conventional medicine, go to places such as Tijuana, Mexico, where promises of effective treatment for diseases such as cancer are made. ...