The phrase "a source of routine" is correct and usable in written English.
It can be used to describe something that provides a regular or habitual structure in someone's life or activities.
Example: "For many people, a source of routine can be found in their morning coffee ritual, which sets the tone for the day."
Alternatives: "a source of regularity" or "a source of consistency."
We aimed to estimate sex ratios in specific major CA diagnoses using a large source of routine healthcare data representative of the United Kingdom (U.K).
UNHCR's HIS is a primary source of routine feeding program data collected using standardized case definitions and reporting formats across refugee camps in multiple settings.
To assess the role of food as a source of infection, we combined routine surveillance with real-time strain sequencing in the Netherlands during 2008 2010.
This is not only therapeutic but provides, as part of routine clinical management a source of tissue for assessment of prognosis, assuming robust biomarkers to predict the risk of later metastatic relapse to viscera and/or brain can be identified.
This component, as it is often used as a source of information, shall have fast routines that do not affect the validation performance.
But because many illegal immigrants work in low-wage jobs that offer no benefits, and cannot qualify for Medicaid, they use emergency rooms as their primary source of routine and critical health care.
As fungi are often ignored as a source of disease, it is time to add routine molecular testing of fungal pathogens to quality control measures for pharmaceuticals so we can end unnecessary illnesses.
But this new routine was apparently a source of embarrassment: he never mentioned the casinos to his family, his sister said, and he rarely talked about them to his roommates.
Consequential, organizational routines can also be a source of change.
But their values differ markedly, and the routine exchange of money is a often a source of confusion and argument.
