Warfarin is used primarily as a blood thinner to prevent the formation of blood clots. It has a narrow therapeutic margin.. This means that any change in the amount of warfarin in your bloodstream may change the way warfarin affects you.
Crossover thrash - Deathrash - Blackened thrash metal. Thrash metal is an Extreme metal variety of Heavy metal, one that is characterised by fast tempos, high speed riffing and aggression. Thrash metal songs typically use fast, percussive and low-register guitar riffs, overlaid with shredding-style lead work.
Then new sub-genres come into play like Melodic Death Metal, which is a crossbreed of Death Metal and Power Metal, also with elements of Thrash Metal, but sound little like any of these original roots.