Adapting this method to the much smaller breast cancer biopsies proved challenging, especially since the anatomy of the breast is much more diverse in its tissue components.
Recruiting respondents for in-depth face-to-face interviews proved challenging, especially in countries where there are not many migrant health workers from SSA countries.
Victoria is also proposing to allow transgender people to change their birth certificates without having to undergo reassignment surgery, an idea proving challenging, especially to some feminists.
"The case for reform is compelling" because China has "reached a turning point in its development path", said Zoellick, adding that the transition to a high-income country would prove challenging, especially given the volatile global environment.
Achieving a gradual rise in sodium concentration can be challenging, especially when treating patients on renal replacement therapy (RRT).
But fracture reduction and plate osteosynthesis remain challenging, especially when using 2 plates, although endoscopic assistance has proven helpful.
The differential diagnosis between septic and aseptic loosening can be very challenging, especially when no previous radiographs are available.
The latter is particularly challenging, especially when associated with tuberculosis scars, which, in our country, have a medium incidence.
The characterisation of material behaviour models can be challenging, especially when dealing with strongly non-linear constitutive laws.
By using a set of discrete coordinates, this response can become computationally challenging, especially when using a modal representation.
