[tag=IN | word=caused] □
[tag=IN | word=caused] [□]
[tag=IN | word=caused] □*
Although this potential bias cannot be ruled out by statistical methods , we attempted to address physicians ' potential preference to switch patients to olanzapine soon after patients ' enrollment in the study . The list of matching sequences from other genomes was sorted from the most significant match to the least . To investigate trends in travel-related infections , we collected information on air travel from the Swedish Civil Aviation Administration ( CAA ) [ 15 ] . As outlined earlier , THC can modulate and inhibit the activation of immune cells , so it is not entirely surprising that it can down-regulate the reactivation of viruses residing in lymphocytes , as shown by the data . Despite the ongoing scientific debate about amphetamine-induced psychosis it remains unclear whether the use of amphetamine-like substances including khat may actually cause a psychotic disorder in an otherwise healthy individual , or trigger the onset of schizophrenia in an individual with high vulnerability to the disease [ 24,25 ] .