The part of the sentence 'has been paucity' is correct and usable in written English.
You can use it to indicate that there is a shortage or lack of something. For example: "Research into the physiology of dreams has been paucity, leaving many questions unanswered."
Although avoiding patellar eversion during a total knee arthroplasty (TKA) has theoretical benefit in quadriceps recovery, there has been paucity of supportive objective clinical results.
There has been paucity of data regarding community attitudes, beliefs and behaviors during delivery and newborn care from the region.
While obesity and colorectal cancer has become one of the major health problems in Asian countries including Korea, there has been paucity of data regarding obesity among Asian colorectal cancer patients [ 19, 20].
Although thought to be pervasively transcribed, and suggested to be a major class of non-coding functional RNA, there has been paucity of well annotated and curated datasets of lncRNAs which limits the generalization of analysis.
There has been a paucity of theory-based interventions to improve health outcomes in overweight adolescents.
Despite these well-held beliefs, there has been a paucity of studies exploring the preinterview reception.
Until now, there has been a paucity of independent data, making state-to-state comparisons nearly impossible.
At the same time, there has been a paucity of these high-quality state surveys since the debate.
There has been a paucity of studies on the fatigue behavior of SRC beams under high-cycle fatigue loading.
However, there has been a paucity of studies that quantify the number of care transitions or that attempt to explain utilization patterns over a given time period.
Acute exacerbations of chronic disease are ubiquitous in clinical medicine, and thus far, there has been a paucity of integrated methodological discussion on this phenomenon.
