At the same time, however, we must say that the reasons, the cause for the difficult journey to be undertaken by Greece, that the reason for this is to be found in Greece, and not outside Greece, and definitely not in Germany".
Difficult negotiations had to be undertaken at the national level, and priority was given to medical care and ARV availability, to the detriment of prevention or community support activities, largely provided by the associative sector.
The Partisan Path has been less likely to succeed because it tends to be undertaken under more difficult circumstances.
Although trials in surgery are inherently difficult, they should be undertaken to examine the role of surgery in MDRTB patients.
Experiments on "exotic" atoms or molecules, though difficult, will be undertaken in future even though it may not be near future.
Determining the fitness of an insecticide resistance allele [ 2] is difficult, but can be undertaken using allele competition experiments between genetically related strains [ 12].
Given this striking difference, it is debatable whether an RCT specifically targeting these difficult cases can be undertaken ethically.
Many also commented that they felt undermined by local consultants who were opposed to the reformed curriculum in principle and those from the first cohort in particular cited that it was sometimes difficult to be the first cohort to undertake a brand new programme.
However, peer effects are difficult to estimate and causal interpretations must be undertaken with caution since individuals in most cases choose with whom to associate.
This made it difficult to determine how PA was undertaken at school.
