The articles on his website read like he messed up the controls in his experiment. I wouldn't put much stock in this.
He has had problems with the controls getting healed. He has to send the controls to another city otherwise they'll be healed as well.
He doesn't "claim" to heal cancer... he has healed cancer a number of times in lab experiments.
You'd have to download "The Effect of Laying on of Hands..." from this page...
https://bengstonresearch.com/publications, but here's an excert:
Methods and Data
The First Experiment
Krinsley was a professor at Queens College of the City University of New York. He had arranged for a disinterested professor of biology who was doing conventional cancer research to prepare experimental animals. Her area of ex- pertise was mammary cancer, so she was familiar with mammary adenocarci- noma and obtained from The Jackson Laboratory a “standard” mammary ade- nocarcinoma (code H2712; host strain C3J/HeJ; strain of origin C3H/HeHu). The normal progression after the mouse is injected is the development of a nonmetastatic palpable and visible tumor that grows so large that it crushes the internal organs of the host. Host survival in the conventional literature was 100% fatality between 14 and 27 days after injection.
The experimental procedure was planned as follows: Bengston was to place his hands around the outside of a standard laboratory plastic cage containing six mice for 1 hour per day while applying the healing technique, beginning 3 days after injection. At no time were the mice to be directly touched. Six con- trol mice were kept in a separate laboratory in the same building. One experi- mental mouse died of natural causes before treatment began, so only five mice were actually treated. Our initial hope was that we might get a significant dif- ference in survival between the experimental animals and their controls. Re- mission was not seriously considered.
Our results were totally beyond expectation. About 10 days into the proce- dure, the experimental mice began to develop a “blackened area” on their tumors (Figures 1 and 2). At this point, Bengston presumed that the experiment was failing and wanted to call it off. Krinsley convinced him to continue, rea- soning that there was nothing to lose. Approximately 1 week later, the black- ened areas “ulcerated” as if they had been split open (Figures 3 and 4). In some
cases, the ulceration grew extremely large (Figure 5) then appeared to implode (not shown), and the wound closed. The mice then lived their normal life span of approximately 2 years. In the figures, the index card notation “A-3” identi- fies the mouse, and the day number indicates elapsed time since injection. In
Figure 1 (Day 14), the tumor is visible on the left posterior dorsal aspect of the mouse.
On Day 22 (Figure 2), the tumor is clearly larger but has developed an en- crusted area on its surface (most posterior aspect of the tumor). This is the ear- liest indication of tumor regression.
Days 28, 35, and 38 (Figures 3 through 5) illustrate the next significant stage. The tumor appears to be resorbed internally and remains clear of infec- tion. From this stage on, the tumor regresses completely (not shown), and the mouse lives its normal life span.
The control mice presented us with some unique challenges. In the initial stages of developing the experimental procedure, the healer warned that he could not be near or see the control mice, or they, too, would go into remission. Although skeptical, we agreed to keep the control mice in another laboratory. When Bengston became the substitute healer, we relaxed this protocol. After two control mice had died “on schedule”—that is, between 14 and 17 days after injection—Bengston went to see the remaining four. They exhibited nor- mal tumor progression patterns and were obviously in the last stages of the dis- ease. However, after Bengston observed the four control mice in their cage, several days later, they too developed the blackened area, the tumor ulcerated, and the mice went into full remission, although they lagged behind the regularly treated experimental mice in remission rate.