1. The first study was performed by Peter H.C. Mutke, M.D. (UCLA). He presented his results as a research paper to the Department of Neuropsychiatry, University of California, Los Angeles on the 28th of February 1971. Dr Mutke was still with UCLA as of 1994 and has been active in the American Council of Hypnotist Examiners.
2. Stimulation of breast growth by hypnosis. by J E Williams. "Journal of Sex Research" 1974. His thirteen volunteers averaged an increase of 2.11 inches in the circumference of their breasts, which is two cup sizes.
3. A R Staib A R and D R Logan, Hypnotic Stimulation of Breast Growth. "The American Journal of Clinical Hypnosis" 1977. They repeated Dr. Williams's study with similar results. They also found that womens' waist sizes decreased by 1.4 inches. They conducted a follow-up study, which showed that 81 % of the breast enlargement was retained several months after the women had stopped their visual imagery.
4. R D Willard, Breast enlargement through visual imagery and hypnosis. "The American Journal of Clinical Hypnosis," 1977. Dr Willard used a different technique to Dr. Williams, who used age regression and age progression. R D Willard achieved an average 1.44 inch increase in the breast size of his 22 volunteers. Every woman had an increase in her breast circumference.
5. Donald L Wilson MD, "Natural Bust Enlargement With Total Mind Power". How to use the other 90% of your brain to increase the size of your breasts. Book published in 1979. Dr Wilson ran a clinic in California with great success.
6. Roy Beran, a neurologist at Adelaide Children's Hospital in England, presented the results of his study to the February 1979 National Convention of Hypnotherapists in Adelaide. Dr Beran showed that the breast volume (he measured the breast's cubic displacement of water) more than doubled during the three month hypnosis program.
Excerpt of the RESULTS section of the Willard study:
At the end of 12 weeks, 28% of women had reached the goal they had set at the beginning of the program and desired no further enlargement. There were 85% who could tell that a significant enlargement in their breasts had been accomplished. 46% found it necessary to buy a larger brassiere. 42% had a loss in weight of greater than 4 pounds and still had an enlargement of their breasts. The average increase in circumference was 1.37 inches. The average increase in the vertical measurement was 0.67 inches and the average increase in horizontal measurement was 1.01 inches.
In this study, 63% of the subjects had had children and complained of pendulous breasts. The subjects expressed a desire to reclaim the fullness and contour of the breasts which they had before their pregnancies. All of these subjects reported they were very pleased with the increase in fullness and firmness of their breasts at the end of the study. The only two subjects who subjectively felt there had been no significant increase had a measurable increase in size. Both subjects had difficulty obtaining the visualizations. All of the subjects reported an increase in firmness of their breasts. All of the subjects who began the study with one breast smaller than the other found them to be equal in size at the end of the twelve weeks.