How internal bleeding leads to black diarrhea. Black diarrhea is made up of digested blood. When you have black diarrhea from internal bleeding, it means that the bleeding likely happened high up in your digestive tract. When you bleed in your food pipe or stomach, you donât always vomit blood.
GG - Government Grade, All Acronyms, viewed April 15, 2017, <https://www.allacronyms.com/GG/Government_Grade>.
The RG designation stands for Radio Guide; A series of standard types of coaxial cable were specified for military uses, in the form RG-# or RG-#/U. They date from World War II and were listed in MIL-HDBK-216 published in 1962. These designations are now obsolete. The RG designation stands for Radio Guide; From The obvious place.