I roto i tētahi arotake i te tau 2015, i tātarihia e ngā kairangahau ngā whakamātautau i whakamahi i te mārama whero me te mārama tata-whero ki ngā uaua i mua i te whakakori tinana, ā, i kitea i piki ake te wā tae noa ki te ngenge me te maha o ngā whakahokinga i mahia i muri i te whakaora mārama.
"I piki ake te wā tae noa ki te ngenge nui ki te whakataurite ki te placebo mā te 4.12 hēkona, ā, i piki ake te maha o ngā whakahokinga mā te 5.47 i muri i te phototherapy."
