The design, development and documentation of software. See software engineer, systems analysis & design, programming, object-oriented programming, software metrics, CASE and Systemantics.
Overview. Posttransplant lymphoproliferative disease (PTLD) is an unusual entity that has many features of an immune system malignancy. It is characterized by uncontrolled proliferation of lymphoid lineage cells (typically B cells, rarely non-B lineage) in a context of posttransplant immunosuppression.
Do I have Chronic Lyme Disease? Chronic Lyme Disease (CLD), also known as Post-Treatment Lyme Disease Syndrome (PTLDS), is the lingering symptoms of fatigue, pain, memory loss, joint and muscle aches associated with Lyme disease more than one month after infection.