1. Emergency department telephone advice;Verdile;Ann Emerg Med,1989
2. Pediatric telephone advice in the emergency department: results of a mock scenario;Isaacman;Pediatrics,1992
3. Evaluation of NHS Direct first wave sites. First interim report. Medical Care Research Unit;Munro,1998
4. Safety and effectiveness of nurse telephone consultation in out of hours primary care: randomised controlled trial;Lattimer;BMJ,1998
5. Concerns and confidence of general practitioners in providing telephone consultations;Foster;Br J Gen Pract,1999