At this point, it is important to remark the difficulty in distinguishing between changes due to selective pressures imposed by the immune system from those specific to antiviral therapy.
His remarks underscored the difficulties that the war in Iraq has caused for the Bush administration's efforts to gain support for its campaign against terrorism.
The talks would also cover family reunions, last held in North Korea in April but stalled amid bitter exchanges reflecting in part North Korea's unhappiness over some of President Bush's remarks about the difficulties of dealing with Kim Jong Il.
Most of these remarks concerned patients' difficulties with rating their experience of individual symptomatic events.
Analyzing the 94 narrative comments provided on the items across the debriefing interviews, 11 remarks concerned comprehension difficulties, 13 remarks concerned clarity, 25 remarks concerned knowledge and recall (ease of memory retrieval), and 45 remarks concerned ease of judgment or spontaneous comments.
Topolanek's remarks highlight the difficulties of reaching any meaningful international agreement on the use of fiscal stimulus to tackle the crisis at the G-20 meeting next week, argues BNP Paribas economist Ken Wattret.
"I think it was a mistake, Europe's already in difficulty," remarks Simona Barnocchi at the counter.
As Franck Ribèry stated after his initial remarks about the difficulty of overcoming Arsenal, "It's important to carry on".
Recently, Elliott Carter, the dean of American composers, remarked on the difficulties of achieving "personality" in serious musical composition.
Even though he did not distinguish himself as a writer, as is evident from his own remarks about the difficulty of writing, Luria composed three hymns that became widely known and part of the cultural heritage of the Jewish people.
