Some foreshadowed mechanisms that were years away; others were impractical and soon became the subject of historians' trivia games.
Tracer gases are an effective method for assessing mine ventilation systems, especially when other techniques are impractical.
Mapping from ICD codes will obviously not be as accurate as AIS or ISS scoring based on direct access to the actual person or primary medical record (Meredith et al., 2002; Di Bartolomeo et al., 2010), and might be more accurate if more recent versions of the AIS were applied, but it appears to be a reasonable substitute when other methods are impractical or unavailable.
In the case of SCC, a topical 5-fluorouracil (5-Fu) treatment is widely used when other treatments are impractical and for patients who refuse surgical treatment [ 96].
Supported by findings of a systematic review and modelling studies, WHO recommends that PPT be offered when other approaches are impractical, where clinical services are limited, or as part of a comprehensive STI service package [ 7, 99, 100].
Holding hands is also something to do when other romantic gestures are impractical, like when you're stuffed into the back seat of a cramped car.
While further studies examining the longer-term impact of testing would be desirable, such studies are impractical and other data showing treatment leads to SVR, reduced morbidity, and improved survival are already very strong [ 36, 37].
This recommended the adoption of the geko™ for use in people with a high risk of VTE and when other mechanical/pharmacological methods of prophylaxis are impractical or contraindicated in selected patients within the National Health Service in England.
Many of these postsecondary education institutions do not allow students to possess cars; for others, it is impractical because of limited roadway access or parking.
Some other drugs require huge volumes that are impractical to achieve with cells.
