The phrase "admonition regarding" is correct and usable in written English.
It can be used when referring to a warning or reprimand about a specific issue or topic.
Example: "The teacher issued an admonition regarding the importance of completing assignments on time."
Alternatives: "warning about" or "caution concerning".
Regarding Mr. Hamlin's admonition to doctors to be realistic with their patients ("But doctors, be realistic with your patients. Don't promise them Spain"), my own experience certainly reinforces this point.
The full interview covers a lot of ground, but the breakouts regarding social media include an admonition against those "in leadership" using it in ways that prevent establishing "a common space on the internet," which seems an oblique reference to Donald Trump and his use of Twitter, which is often divisive, and seemingly intentionally so.
Also, well received was Documentary Feature winner Citizenfour's producer Laura Poitras regarding whistle blowers and her admonition for greater access to what's going on in our government, which was about as political as the show got.
In such expressions as moral imperatives, admonitions, and exhortations there is, of course, a factually significant core viz., regarding the (likely) consequences of various actions.
This purportedly has included belittling comments made regarding medical doctors' knowledge about nutrition and health and wellness, as well as admonitions given to patients about the therapeutic modalities used by these providers (e.g. "Do not tell your doctor about this").
This should make anyone hesitant to make strong claims regarding what the evidence on SDCFs "clearly proves". But with drug policy debate being what it is, there is no guarantee that many people will take that admonition to heart.
Honestly, the first of the Matthew-author's "commandments," regarding love of a supreme being, I've long consigned to the rubbish heap of magical thinking, but that second admonition is a keeper.
The warrior's code — that admonition never to retreat — was something he regarded with ambivalence.
His famous admonition in one of his radon papers, 'A little contemplation saves a lot of calculation,' expresses it all". Professor Evans also was regarded as a superb teacher, and many of the leading nuclear physicists today were among his 1,200 graduate students, 100 of whom completed their theses under his direction.
