As patients with benign gallbladder disease tend to be of advanced age, safer and more feasible surgical techniques are required for difficult cases [ 7- 9].
For example, crude proxies or indicators may be required for services for which it is difficult to obtain accurate, spatially explicit measures of supply and demand (e.g., flood mitigation; see Holland et al. ).
In recent years, this system was applied to generate pluripotent stem cell (PSC derived donor organs in vivo due to the fact that complex cellular interactions among and within tissues that are required for organogenesis are difficult to recapitulate in vitro.
Many educators had described the test, which is required for graduation, as inordinately difficult.
Determining when surgery is required for pancreatic lesions is difficult and is best individualised after multidisciplinary assessment, preferably within research studies.
However, due to the enormous amounts of cell material that is required for these methods it remains extremely difficult and thus is not discussed here any further.
Although additional SFA was required for implant placement, it seemed to be difficult to elevate the membrane by a conventional lateral approach in the palatal aspect of the sinus floor (site #26).
Moreover, the set of true-negatives which is required for training an SVM is often very difficult to define.
Because of the LV shortens from base to apex in systole, the fixed short-axis tracking that is required for circumferential and radial strain is more difficult than longitudinal tracking.
To avoid local recurrence, an early diagnosis is required for this type of tumor, which is difficult as most of these patients are asymptomatic like other kinds of rare tumors within the knee including Intra-articular ganglia, Extra-osseous osteochondroma, pigmented villonodular synovitis and even sarcoma inside the knee [ 4- 8].
