The site below is an amazing read, how two doctors found the uses of HCl back in the 1920's, and all the things they cured, and how the medical periodicals would not publish their findings. Plus at the end of the story are reader comments, one guy cured leukemia. There's a link at the beginning of the story to "Three years of HCl Therapy" which I also highly recommend you read, it's the doctor's stories.
health-parameters.com/posts/hydrochloric-acid-therapy-hcl-therapy/