Ludwig Roemheld was a physician in the late 1800's doing caloric intake research when he happened upon a critical link between the gastrointestinal system and the heart. He published books about Roemheld Syndrome in the late 1920's to 1940's, and his findings were taught to physicians in the mid 1900's.
Unfortunately his work is all but unknown by physicians outside of Germany and Scandinavia today. His writings have never been translated to English, but we're working on providing that here in the future.
< English translation of Roemheld's papers coming, please check back.