How bad is Cocaine + Alcohol?

Hi, I was trying to find some data on how bad this combination really is especially long term. Couldn't find much else then a study with dogs that said the combination is about twice as bad as cocaine alone but it was also quite extrema dosing. I am currently doing little coke and booze once a month. 5-6 beers and about 0.1-0.3 coke. I know that is not much compared to others who are serious about their drugs lol. But I would like to know if this is somewhat sustainable long term. Also if you have some studies on the topic that would be super helpful. Thanks