Langerhans' cell histiocytosis can manifest as three distinct clinicopathologic entities: acute disseminated Langerhans' histiocytosis (previously known as Letterer-Siwe disease), unifocal Langerhans' cell histiocytosis (previously known as eosinophilic granuloma).
average handle time (AHT) Average handle time (AHT) is a call center metric for the average duration of one transaction, typically measured from the customer's initiation of the call and including any hold time, talk time and related tasks that follow the transaction. AHT is a prime factor when deciding call center staffing levels.
The OECD data shows that another important factor is work-life balance. While Scandinavian countries boast a high GDP per capita, the average workweek in that part of the world is no more than 37 hours. In China, which got a low score of just 14.8, the workweek is 47 hours and the GDP per capita is just $3,600.