Laser lithotripsy. Laser lithotripsy is a surgical procedure to remove stones from urinary tract, i.e., kidney, ureter, bladder, or urethra.
HIV-1 is surprisingly old, and it probably debuted in humans at least three separate times -- one for each subtype, M, N, and O. Scientists' best guess is that the precursor of the most common M virus jumped from the Cameroon chimps to humans sometime before 1931.art One: Chapter Four Scientific Breakthroughs. HIV-1, which is responsible for the vast majority of AIDS cases worldwide, is divided into three groups -- the major group M, and the much rarer outlier group O and new group N -- that have diverged over years of mutation and evolution.
Where Did HIV Come From? HIV is a virus that can lead to acquired immunodeficiency syndrome, or AIDS, but where did HIV come from? and what is the origin of AIDS? Did HIV come from SIV? or did HIV come from somewhere else? who's patient zero for AIDS? could it really be Gaetan GaÃ«tan? dugas all of these questions are answered in this. video