I want you to write a critical review for the article ?hypervariability of biofilm formation and oxacillin resistance in a staphylococcus epidermidis strain causing persistent sever infection in an immunocomprpmised patient?. It should contain two main sections, the first one is a summary for the article then the second part is a critical review. For the critic part I do not want a yes or no answers, I want more depth detailed answers. For the reverences I want it to be from books and journal articles and up to date and no older than 2006. The reverence style is ASM(American Society of Microbiology). I have attached two files: the article and additional instructions Please read them carefully and do not hesitate to ask me.