It may be argued that comparing measurement of knee rotation between different studies are of limited value, since different measurement devices, different flexion angles and different applied torques have been used.
It could be argued that comparing patient outcomes for patients with and without a stoma is not valid because of confounding by indication; patients may have received a stoma because they were considered to be high risk patients and are therefore not comparable to patients who did not receive a defunctioning stoma.
Previously it has been argued that, compared with sober individuals, intoxicated individuals are less able to consider negative consequences of risky decisions over positive outcomes 12.
It has been argued that, compared with fractional anisotropy, MD lends itself better to the assessment of cortical and subcortical grey matter, where net diffusion may not be expected to conform to any one specific direction [ 28].
It is argued that, compared with a single clinical or genetic marker, a panel of multiple markers may contain a higher level of discriminatory information, particularly across large heterogeneous patient populations and for complex multistage diseases.
While no one denies that culture shapes reality to some extent, it can again be argued that when comparing the plausibility of specific beliefs, we must consider not only these specific beliefs themselves but also the basic background beliefs in which they are embedded.
Although the results show substantive knowledge gains, it might be argued that we did not compare the online module to any other intervention or more traditional methods, such as paper format or live CPD modules.
The prospective longitudinal design provided the opportunity to observe a temporal order of events on an individual level, and it can be argued that the power is stronger compared with that of a cross-sectional design.
It could be argued that the benefits of HVHF compared with SVHF observed in uncontrolled trials, [ 36- 39] in animal studies [ 14, 40, 41] and on surrogate outcomes [ 20] provide a basis to merit further RCTs despite the difficulties in patient recruitment.
On the one hand it could be argued that it is unfair to compare the take-up rate of cable broadband in Europe to that in the U.S. because the penetration rate of cable television use is so much higher here.
