Singh, S; Ernst E (2008). «The Truth about Acupuncture». Trick or treatment: The undeniable facts about alternative medicine. W. W. Norton & Company. pp. 39–90. ISBN978-0-393-06661-6. «"Scientists are still unable to find a shred of evidence to support the existence of meridians or Ch'i" (p72), "The traditional principles of acupuncture are deeply flawed, as there is no evidence at all to demonstrate the existence of Ch'i or meridians" (p107)».
Singh, S; Ernst E (2008). «The Truth about Acupuncture». Trick or treatment: The undeniable facts about alternative medicine. W. W. Norton & Company. pp. 39–90. ISBN978-0-393-06661-6. «"Scientists are still unable to find a shred of evidence to support the existence of meridians or Ch'i" (p72), "The traditional principles of acupuncture are deeply flawed, as there is no evidence at all to demonstrate the existence of Ch'i or meridians" (p107)».
Bakker, Gary M. (Noviembre de 2013). «The current status of energy psychology: Extraordinary claims with less than ordinary evidence». Clinical Psychologist(en inglés)17 (3): 91-99. doi:10.1111/cp.12020.
Norcross, John C.; Koocher, Gerald P.; Garofalo, Ariele (1 de enero de 2006). «Discredited psychological treatments and tests: A Delphi poll.». Professional Psychology: Research and Practice(en inglés)37 (5): 515-522. doi:10.1037/0735-7028.37.5.515.
Church, Dawson; Stapleton, Peta; Yang, Amy; Gallo, Fred (2018). «Is Tapping on Acupuncture Points an Active Ingredient in Emotional Freedom Techniques? A Systematic Review and Meta-analysis of Comparative Studies». The Journal of Nervous and Mental Disease206 (10): 783-793. ISSN0022-3018. PMID30273275. doi:10.1097/nmd.0000000000000878.
Feinstein, David (Diciembre de 2012). «Acupoint stimulation in treating psychological disorders: Evidence of efficacy». Review of General Psychology16 (4): 364-380. doi:10.1037/a0028602.
Bakker, Gary M. (Noviembre de 2013). «The current status of energy psychology: Extraordinary claims with less than ordinary evidence». Clinical Psychologist(en inglés)17 (3): 91-99. doi:10.1111/cp.12020.
Norcross, John C.; Koocher, Gerald P.; Garofalo, Ariele (1 de enero de 2006). «Discredited psychological treatments and tests: A Delphi poll.». Professional Psychology: Research and Practice(en inglés)37 (5): 515-522. doi:10.1037/0735-7028.37.5.515.
Bakker, Gary M. (Noviembre de 2013). «The current status of energy psychology: Extraordinary claims with less than ordinary evidence». Clinical Psychologist(en inglés)17 (3): 91-99. doi:10.1111/cp.12020.
Church, Dawson; Stapleton, Peta; Yang, Amy; Gallo, Fred (2018). «Is Tapping on Acupuncture Points an Active Ingredient in Emotional Freedom Techniques? A Systematic Review and Meta-analysis of Comparative Studies». The Journal of Nervous and Mental Disease206 (10): 783-793. ISSN0022-3018. PMID30273275. doi:10.1097/nmd.0000000000000878.
Church, Dawson; Stapleton, Peta; Yang, Amy; Gallo, Fred (2018). «Is Tapping on Acupuncture Points an Active Ingredient in Emotional Freedom Techniques? A Systematic Review and Meta-analysis of Comparative Studies». The Journal of Nervous and Mental Disease206 (10): 783-793. ISSN0022-3018. PMID30273275. doi:10.1097/nmd.0000000000000878.