Snoring, sleep disturbance, and behavior in 4-5 year olds.

and colleagues at Hacettepe University reported transient protein S defici- ency after deep vein thrombosis, complicating Salmonella typhimurium infection in a 13 year old boy.' They state that their investigations did not reveal evidence of disseminated intravascular coagulation, a known cause of protein S deficiency, and the reader is left with the impression that the acquired deficiency of protein S was the likely cause of the thrombosis in this case.