Complications is a medical euphemism for pneumonia and death.  Now when the Cochrane systematic reviewers were trying to collect together all of the data from all of the trials that had ever been conducted on whether Tamiflu actually did this or not, they found that several of those trials were unpublished.
'Complicaties' is een medisch eufemisme voor longontsteking en dood.  Toen de systematische revisoren van Cochrane de gegevens van alle tests of Tamiflu al dan niet werkte, probeerden te verzamelen, vonden ze dat verscheidene van die tests niet waren gepubliceerd.