The phrase "a wider array of countries" is grammatically correct and appropriate for use in written English.
It is typically used to describe a broad or diverse range of countries. Example: "The United Nations has expanded its membership to include a wider array of countries, making it a truly global organization."
In sum, although transferability of stroke services set-ups to different setting needs to be accounted for, both in health and economic terms, we do recommend implementation of stroke services in a wider array of country settings.
Yet the funds do not only come from a wide array of countries; they also have a variety of motives.
Mr Obama is calling for concerted action: a wide array of countries have already joined the struggle against IS.
Victory would not even prevent small Al Qaeda cells from relocating in Afghanistan, just as they have in a wide array of countries (including European countries).
There are a handful of places on earth you literally can't visit without getting vaccinated, and a wide array of countries where a few recommended shots could be the difference between a dream vacay and a medevac.
There are many benefits of cMYPs; e.g., from a global perspective these country plans provide data on immunization program costs (including operational costs of campaigns) across a wide array of countries in a standardized form and using a comparable methodology.
To our knowledge, there are no existing models that provide estimates of productivity costs for such a wide array of countries or that utilize a methodology that can be modified to estimate productivity costs of specific subgroups of interest.
In a better world, the United States would welcome hundreds of thousands more legal immigrants annually, from a much wider array of countries.
The worshipers, devotees of the Sufi tradition of Islamic mysticism, came from an even wider array of countries and included a young man with multiple piercings and a shirt identifying him as an employee at Jivamukti Yoga.
The Small Arms Survey combined and weighted a wider array of sources, including government registries in other countries, academic surveys like the NFS, law enforcement and manufacturing data, and other proxy measures.
