“…Case studies on PLS patients in the last 25 years report contradictory findings. Several studies reported a depressed in vitro PMN chemotaxis (9,10,23,24,45,68,70,74), whereas others reported normal values (10,47,68,73). Similar conflicting results were found for phagocytosis (6,7,9,10,26,27,62,73), the capacity to kill S. aureus (6,10,54,62,70), and the production of hydrogen peroxide (2,5,6,10,42,55,62,68,71).…”