The phrase "are difficult to elucidate" is correct and usable in written English.
You can use it when discussing concepts, ideas, or topics that are complex and hard to explain clearly.
Example: "The underlying principles of quantum mechanics are difficult to elucidate, even for seasoned physicists."
Alternatives: "are hard to clarify" or "are challenging to explain".
Reason for such divergent effect in men and women are difficult to elucidate, and could be related to the specific effect of different alcohol subtypes, or to the effect of the alcohol drinking pattern.
Genetic influences are difficult to elucidate, and identification of the involved genes is not easily achieved [ 3].
However, little is known about the relationship between real needs and the preference by specialty, since real needs (magnitude of doctor shortage) by specialty are difficult to elucidate.
In the absence of a detailed analysis of risk factors, the reasons for this increase in prevalence are difficult to elucidate, but we feel that the key message from this study is that no successful efforts are being made in this region to control a parasite of high public health importance.
Membrane proteins are among the most difficult proteins to obtain and characterize, and a structure-based understanding of their properties can be difficult to elucidate.
However, high resolution structural interaction mechanism between VGSCs and VTD is difficult to elucidate because of the large size and membrane localization of VGSCs.
While the biological mechanism for this outcome may be difficult to elucidate, most people know intuitively that safety and beauty can help cure the ills of modern society, just as an old-fashioned country doctor can heal with a kind touch and a smile.
Multidrug resistance usually occurred either due to indiscriminate utilization of antimicrobial agents or genetic mutation, which was difficult to elucidate with the present study methodology.
