The phrase "a primary cause that" is correct and usable in written English.
You can use it when discussing the main reason or factor contributing to a particular outcome or situation.
Example: "The researchers identified a primary cause that led to the decline in bee populations."
Alternatives: "a main factor that" or "a key reason that".
Thus, it is unlikely that dehydration was the primary cause that lead to a prerenal form of renal failure in this patient.
Specific species differences in codon usage often indicate primary causes that affect levels of protein expression.
Just as in the 1930s, there are primary causes that helped initiate the problem and secondary factors which made the situation worse.
Finally, these results demonstrate that the combination of ethanol consumption and halothane exposure may enhance the possibility of the development of the sepsis syndrome, since increased systemic concentrations of TNF-α induced by endotoxin is a primary cause of that clinical condition.
Each death record in the UPDB contains a primary cause of death that was coded with the International Classification of Diseases (ICD) nomenclature.
The SSD is caused by shear deformation, and the orientation and complexity it forms are the primary causes that result in the SSD anisotropy.
Shear deformation is the formation mechanism of subsurface damage, and the direction and complexity it forms are the primary causes that result in the anisotropy of subsurface damage.
Protein misfolding is one of the primary causes that drive hepatocytes apoptosis in PiZZ individuals (Lawless et al., 2008).
Heart failure is a multietiological clinical syndrome that develops progressively as a consequence of a primary cause (acute or chronic) that impairs the systolic function (HF with reduced ejection fraction) and/or the diastolic one (HF with preserved ejection fraction).
A team led by Dr Sonia Saxena, of Imperial College London, analysed statistics on all NHS admissions for obesity - as a primary cause or alongside conditions that had been complicated by obesity - in hospitals in England and Wales over a 10-year period in patients aged five to 19.
