“…The discovery of cholesterol goes back to the French chemist Chevreul, who in the last century [49] first identified this substance in human gallstones and named it cholesterine (Greek: chofe = bile, steros = solid). Berthelot [50] demonstrated that cholesterine was an alcohol, and it was later renamed cholesterol [reviewed in 51]. Sonography is the most suitable method to detect the presence of gallstones [52].…”