The phrase "are often not specific" is correct and usable in written English.
It can be used when discussing something that lacks clarity or detail in various contexts, such as academic writing, reports, or general communication.
Example: "The guidelines provided by the committee are often not specific, leading to confusion among the participants."
Alternatives: "tend to be vague" or "frequently lack precision."
The X-ray findings are often not specific.
Furthermore, behaviours measured are often not specific to emotion, or sensitive to subtle differences in emotion.
This is the case because general moral standards, concepts and methods are often not specific enough to be applicable in any direct sense to specific moral problems.
Coefficients are often not specific regarding geographical origin of raw materials in many cases, the geographical origin of a raw material is different to the geographical origin of an imported manufactured good.
Similarly, enzymes acting on lipids are often not specific to the length of their carbon chain.
These symptoms are often not specific to PD and have low positive predictive value for early PD diagnosis.
There are definitive signs of impending rupture (an aneurysm size increase especially with a rapid enlargement rate, focal wall discontinuity, hyper-attenuating crescent sign, thrombus fissuration, draped aorta sign or periaortic stranding); unfortunately these signs are often not highly specific [29, 30] (Fig. 8) but detection of these findings advocates urgent treatment.
Symptoms of sleep apnea are often not very specific, meaning not everyone who feels tired during the day or who snores at night has sleep apnea, notes the University of Maryland Medical Center.
However, clinical trials demonstrate that kinase inhibitors are often not as specific as desired leading to unwanted side effects.
However, if we remove "dubious" entries such as known chromatin proteins that contain MYB/SANT, ARID, and HMG domains, which are often not sequence specific (Boyer et al. 2002; Patsialou et al. 2005; Stros et al. 2007), and also those for which there is no evidence that they directly bind DNA in a sequence-specific manner in yeast, only 209 remain.
Laboratory assessments for CCA are often not sensitive, nor specific enough.
