A generalised notion of exponential families is introduced. It is based on the variational principle, borrowed from statistical physics. It is shown that inequivalent generalised entropy functions lead to distinct generalised exponential families. The well-known result that the inequality of Cramér and Rao becomes an equality in the case of an exponential family can be generalised. However, thi...

Background: Traveller patients have distinctive clinical characteristics compared to non-traveller patients. Local information about the features of traveller is lacking. Objectives: The objective this study evaluate presenting a hospital near Hong Kong International Airport. Methods: This was single-centred, retrospective cohort study. Medical records all Accident and Emergency Department Nort...