This is the first book devoted to the study of the social and economic consequences of headache. Reducing the Public Burden of Headache analyses the financial cost of headache diseases, the disability and suffering they cause and the impact they have on the quality of life and the sufferers and their families.
These are issues of major importance; migraine appears in the top 20 list of diseases ranked according to years lived with the disability. Headache, in general, is thought to account for approximately 20% of all days lost from work. Of even greater importance is the impact on...

Nightjars and their allies are a curious, fascinating, and remarkably varied group of birds that are found throughout the world. This largely nocturnal group has many specific adaptations for night time activity and some species have unique associations with bats. Until now, the existing literature has lacked information about their biology or evolution. This book rectifies these omissions in a comprehensive account. The 118 species accounts provide details of coloration, plumage, moults, geographical variation, body measurements, habitats, behavior, conservation, and evolution and are backed...