To clarify these etiologies, further study is needed to investigate the amount and composition of the VLDL-TGs.
Thus, variation in the length of the AR (CAG n repeats may provide insights into the underlying genetic etiology and further development of PCOS.
Whether these clinical differences are representative of heterogeneity in the underlying etiology needs further investigation.
Moreover, for some cancers there is little knowledge on their etiology, and further research is needed to disentangle the role of the environment in their causation.
Intra-renal etiology was further classified into acute tubular necrosis, acute glomerulo-nephritis, acute tubulo-interstitial nephritis or vascular etiology based on the presence of predisposing factors, histological evidence, serum or urinary markers and/or high clinical suspicion [ 7].
However, PD is considered to have a multifactorial etiology, and further insight into the role of DAT gene variants on PD risk might be obtained from investigations of gene environment interactions.
A better understanding on the clinical courses of single and multiple viral etiologies requires further studies.
However, other than the designation of chronic alcoholic pancreatitis as a special entity of chronic obstructive pancreatitis of various etiologies, no further attempt to design a clinically relevant system of staging was undertaken[ 23].
In the time interval before the second test result is available, manifestations of the underlying disease process for the person under investigation, whether due to Ebola virus disease or some other etiology, may require further investigation to direct appropriate therapy.
