The phrase "availability was restricted to" is correct and usable in written English.
It can be used when discussing limitations on access or availability of something, such as a service, resource, or information.
Example: "Due to high demand, availability was restricted to members only."
Alternatives: "access was limited to" or "availability was confined to".
Phenological traits are generally expected to be closely related to individual fitness, especially in seasonal habitats such as temperate forests, where food availability is restricted to a short burst (Visser et al. 2006; Reed et al. 2013b).
This study is limited by data availability, which was restricted to information collected on the entire cohort from birth notifications.
It was not possible to associate environmental variables with many of the dates and locations for observations because the availability of such variables was restricted to more recent years (Table 3) and limited by cloud cover.
Because of limited availability, provision of these programmes was restricted to 70 participants per arm, resulting in a total sample size of 740 participants.
Unfortunately, we were unable to include more samples from our original cohort (70 samples) due to availability and because the analysis was restricted to samples with identical titre in certain cases, which may have resulted in a random selection bias.
Missing ethnicity data hampered any meaningful assessment of inequalities in relation to outcomes or service access by the ethnic group, and the availability of the HES data was restricted to the period from 1996 onwards.
Due to the availability of laboratory data, this study was restricted to those individuals aged 65 and older in Southwestern Ontario, which consisted of 80,000 individuals in the year 2006 [ 9].
To ensure the availability of claims, the study population was restricted to adult ESRD hemodialysis patients with Medicare as a primary payor indicated by a variable in the USRDS Payor History File.
