Adaptive designs in clinical trials: a systematic review-part I oleh Mohamed Ben-Eltriki, Aisha Rafiq, Arun Paul, Devashree Prabhu, Michael O. S. Afolabi, Robert Baslhaw, Christine J Neilson, Michelle Driedger, Salaheddin M Mahmud, Thierry Lacaze-Masmonteil, Susan Marlin, Martin Offringa, Nancy Butcher, Anna Heath, Lauren E Kelly