'where a study' is correct and usable in written English.
You can use it when you are referring to a specific study that has already been mentioned. For example: The study found that there is an increase in smog in the city, where a study on air pollution was conducted last year.
This, however, is not always so: particularly in literature, where a study of such exterior factors seems to be of much more relevance.
In almost all the fields where a study has been done, a third of the highest achievers lost a parent before the age of 14 (compared with 8% in the general population).
It was a major step in a country where a study conducted in July 2011 as part of the World Values Survey, revealed that, when asked what kind of people they would not want to see living in their neighbourhood, a whopping majority of 84% answered "homosexuals".
By E. B. White The New Yorker, October 29, 1938 P. 13 In some of the counties of Maine the deer season has begun and this fall the hunters have a double responsibility first they must shoot their deer, and then they are requested to cut out the entrails and send them in to the University, where a study is being made of internal parasites.
Crosses are marked where a study has not included a technology in their analysis.
Where a study reported several scenarios for the same option, the mean value for all scenarios is shown.
The study will provide a good platform in future study where an empirical study can be conducted.
There was no comparable community, no other place on Earth where such a study could be done.
One important issue is where such a study may be conducted.
Follow-up studies, where an original study of participants are followed up after a period of time.
The final 46 papers cover a total of 43 studies, where an individual study is defined as an evaluation of an intervention conducted in one site (country).
