"extensive users" is a correct and usable phrase in written English.
It is used to refer to a group of people with a great amount of experience in using a certain product or service. For example: "The software company offers technical support to its extensive users."
If, as in New York City, a significant proportion of these people are extensive users of acute-care health services, public shelters and the criminal justice system, "an aggressive investment in supportive housing is warranted," the University of Pennsylvania study said.
Certified organic farms were less likely to use any of these technologies (they are barred from using rbST), and more highly educated producers were more extensive users of the breeding technologies.
In the TAU group 12 were frequent users (ns), four of these extensive users (Table 3).
For some of the survey items, rare users of ePrescriptions were found to have more negative attitudes and extensive users more positive attitudes towards ePrescribing.
Those reporting ADEs were more extensive users of prescription drugs, healthcare resource use, transportation services and informal care, compared with other respondents.
In the IT group 12 were frequent users (more than 100 inpatient days during follow up period) of these six were extensive users (more than 500 inpatient days).
As implemented, these pipelines require extensive user intervention and are not particularly well suited to extension.
"But the truth is that we really won't know until we have extensive user trials".
Google executives have consistently replied that its search results are the product of extensive user testing, and do not favor its own offerings.
Sweden, which also largely funds health care out of taxation (in combination with extensive user charges), has undergone a far more radical programme of introducing an internal market with massive decentralisation, splitting up purchasers and providers, and establishing each hospital and department as a 'profit centre'.
Also included are extensive user manuals and sample data, as well as source code and documentation.
