BACKGROUND The issue of workforce requirements in dermatology has come to attention in recent years because it affects the delivery of dermatologic care in the United States. OBJECTIVE To determine the waiting times for appointments with dermatologists in order to assess the adequacy of the current level of dermatology workforce. METHODS Waiting times were determined for new and return pati...

This study analyzes the waiting lines for solid organ transplants in Brazil's Unified National Health System. By using a queuing theory model, we estimate the waiting times for different organs under alternative scenarios. The model reveals the elasticity of various waiting times with respect to arrival and service rates for organ transplantation within the system. Average waiting time for a so...