Up to now most studies addressing IA patients focus either on the development of one specific comorbid disorder or one group of disorders.
There is also an overall trend for modules to focus either on metabolic gene sets or disease-related gene sets, although modules from one group typically include gene sets from the other group.
Usually, accounts of the civil war focus either on the Spaniards or the international visitors.
The more recent works focus either on the body and performance or on language and, often, neon.
Most histories of the Vietnam war focus either on the combat itself or on the political leadership involved.
Criticism of Darling has tended to focus either on the constituent parts of his reflationary package (it was ever thus) or on its so-called 'cost'cost
Other small-scale renewable desalination initiatives in Saudi Arabia and Oman focus either on developing new desalination technologies, or on coupling renewable energy sources with conventional desalination plants.
Krauze observed that British writers of the past tended to focus either on the light or dark side of Mexico; Vargas says these days it is exclusively the dark side.
When we don't know what is real and what is being faked, it's difficult to focus either on character or on the details of the heist which supposedly provide the suspense.
There are also a couple of gimmicky modes, including a selective focus shooting mode that captures different focal lengths of image and allows users focus either on the near ground or far ground after capturing the image.
Thirdly, most studies focus either on few energy sources or energy services.
