“…All six PBMs can be completed in less than 10 minutes according to the reference article or the PROM manual. Questionnaire versions of 20 PROMs can be completed in up to 15 minutes [24,26,28,[32][33][34]36,37,39,42,43,45,47,[56][57][58]63,[65][66][67][68][69][70]; questionnaire versions of 14 PROMs require between 15 and 30 minutes for completion [27,30,31,41,44,49,55,59,61,[71][72][73][74][75][76]. Two questionnaires [25,46] might take 30 to 45 minutes to fill in.…”