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.
This condition is known as âPost-treatment Lyme Disease Syndromeâ (PTLDS), although it is often called âchronic Lyme disease.â For details on research into âchronic Lyme diseaseâ and long-term treatment trials sponsored by NIH, visit the visit the National Institutes of Health Lyme Disease web site. References. Hu LT. Lyme Disease.