Perceived usefulness of trauma audit filters in urban India: a mixed-methods multicentre Delphi study comparing filters from the WHO and low and middle-income countries oleh Max Petzold, Lovenish Bains, Ulf Ekelund, Kapil Dev Soni, Nobhojit Roy, Martin Gerdin Wärnberg, Swati Gupta, Monty Khajanchi, Anurag Mishra, Jyoti Kamble, Helle Mølsted Alvesson, Johanna Berg, Shamita Chatterjee, Siddarth David, Rajdeep Singh, Prosanta Kumar Bhattacharjee, Pawanindra Lal, Vikas Malhotra, Ravi Meher, Lakshmeswar Nagaraj Mohan, Ritu Saxena, Prabhat Shrivastava, Sumit Sural