PT - JOURNAL ARTICLE AU - Livia Puljak TI - Delays in publishing systematic review registrations in PROSPERO are hindering transparency and may lead to research waste AID - 10.1136/bmjebm-2020-111474 DP - 2020 Jul 14 TA - BMJ Evidence-Based Medicine PG - bmjebm-2020-111474 4099 - http://ebm.bmj.com/content/early/2020/07/14/bmjebm-2020-111474.short 4100 - http://ebm.bmj.com/content/early/2020/07/14/bmjebm-2020-111474.full