The phrase "a main problem and" is correct and usable in written English.
It can be used when introducing a significant issue or concern that will be elaborated upon in the following text.
Example: "One of the main problems and challenges we face in this project is the lack of funding."
Alternatives: "a primary issue and" or "a key concern and".
For each record, a main problem and up to 9 other problem codes are assigned using the International Classification of Diseases version 10, Canadian edition (ICD10-CA).
In this regard, treatment and management of affected patients particularly those with progressive left ventricular dysfunction are a main problem and thus the use of single-drug treatment protocols or preventive approaches is mostly unpromising [ 2].
If you find a main problem, and find that it ruins your entire plot, don't be afraid to change everything.
The link between the patient's mood and management of their diabetes and/or heart disease was explored, and they were introduced to the standardised treatment manual and workbook (see appendix 1 and 2) to help develop a main problem statement and personalised goals.
It is iterative and a main problem is solved each iteration.
In science education, a main problem is overcoming false preconceptions and naive beliefs.
The main problem, and rather a crucial one when you're asking people to invest interest in a whole series, was that it was well-nigh impossible to tell who everyone was.
However, in cases of severe injuries, strong pain or persistent symptoms, your doctor should be advised to identify the main problem and administer a full physical examination.
In 2008, ANAIR, UNHCR and others presented a report listing returnees' main problems and priorities for district and regional chiefs and for the ministry of the interior.
Definitions of Hadamard operators, a statement of the main problems, and the history of the questions on this topic are in Section 3.
