Qigong - Energy Medicine for the New Millennium - by Tom Rogers (2004) (PDF)
Tom Rogers is the President of the Qigong Institute, who's goal is "to promote the scientific understanding of the basis of Qigong". They maintain an extensive collection of Qigong related scientific research papers in the "Qigong and Energy Medicine Database" and have a dedicated page on the "Harvard Medical School Qigong research". More related science papers can be found on Semanticscholar, including some making miraculous claims.