Download original chromosome chapters and brochures below or request a personalized information packet. Each rare chromosome or gene mutation disorder is highly specific. That is why CDO offers personalized information packets to our members based upon the details contained in their genetic analyses reports. General information may be helpful but it can also provide conflicting specifics that might be confusing or even alarming in some instances. The information contained in each CDO packet has been either selected and approved by our consulting geneticist. And we always urge follow-up with personal healthcare providers should there be further questions or concerns.