Traditional adult rheumatology training includes four years of medical school, one year of medical internship, two years of medical inpattern and two years of rheumatism association. The American board of Internal Medicine offers a sub-specialty committee for rheumatology certification that can provide board approval to approved rheumatologists. Here we get to the part the place that the actual maintenance thing begins. I personally prefer complete disassembly and cleaning after every fight. The gun often gets through insane conditions and there's also dust and dirt. As I own the spring version, the disassembly is fairly simple. I would definetly not recommend digging into mechabox in AEG sniper rifles as those are pretty complex mechanisms as well as the internals usually are not confronted with the outdoors influences. Somehow the internals of the cylinder get always dirty and also the lube turns black not on the outdoors. Also most from the greasing leaks down through the cocking pin and climbs into the trigger mechanism. So to sum it up, I would recommend do those steps after each action: