PARP1 and post-traumatic stress disorder: This issue and other important issues of diverse PTSD such as late-onset PTSD (PTSD that primarily erupts six-months or more after the occurrence of the traumatic event) [40] and complex PTSD (PTSD that occurs as a result of exposure to chronic, multiple or repeated traumas, that an escape from them is considered difficult or even impossible) [41] should also be tested for the effect of PARP inhibition.