It does not appear that one gene is responsible for MS.

VOA: special.2009.01.06

Thus,he says,it is not possible to ascertain who is responsible for the shelling or to make a definitive casualty count.

VOA: standard.2009.05.11

Hezbollah is not believed to be responsible for this attack, but rather a small Palestinian faction.

VOA: standard.2009.09.11