Frei H: Asperger's Syndrome — A Case Study with Polarity Analysis Published in Homeopathic Links, Spring 2011 » Download Rutten ALB, Frei H:Opposite repertory-rubrics in Bayesian perspective Published in Homeopathy, April 2010 » Download Gordon M., Michell E (Editors): Attention deficit hyperactivity disorder (ADHD). Chapter 7: Heiner Frei, Klaus von Ammon, André Thurneysen et al.: Homeopathic Treatment of Children with Attention Deficit Hyperactivity disorder: Results of a Long-Term Study over 5 years, Including a Randomzied Double-Blind Placebo Controlled Crossover Trial. » Download Frei H: Self Injury in Borderline Personality Disorder. A Case Resolved with Boenninghausen Method Published in Homoeopathic Links, Winter 2009, Vol. 22: 1–4. » Download Frei H: Polarity analysis, a new approach to increase the precision of homeopathic prescriptions. Homeopathy Jan 2009, 98:39-55. » Download Frei H, Everts R, von Ammon K et al: Randomized controlled trials of homeopathy in hyperactive children: Treatment-procedure leads to an unconventional study design. Homeopathy 2007, 96:35-41. » Download Frei H, von Ammon K, Thurneysen A: Treatment of hyperactive children: Increased efficiency through modifications of homeopathic diagnostic procedure. Homeopathy 2006, 95: 163-70. » Download Frei H, Everts R, von Ammon K et al: Homeopathic treatment of children with attention deficit hyperactivity disorder - a randomised, double blind, placebo controlled trial. European Journal of Pediatrics 2005, 164/12: 758-767. » Download Frei H: Homeopathy in acute otitis media in children: Treatment effect or spontaneous resolution? British Homeopathic Journal 2001, 90: 180-182. » Download Frei H. Treatment for hyperactive children: homeopathy and methylphenidate compared in a family setting. British Homeopathic Journal 2001, 90: 183-188. » Download