All India Difficult Airway Association 2016 guidelines for the management of unanticipated difficult tracheal intubation in obstetrics oleh Venkateswaran Ramkumar, Ekambaram Dinesh, Sumalatha Radhakrishna Shetty, Amit Shah, Pankaj Kundra, Sabyasachi Das, Sheila Nainan Myatra, Syed Moied Ahmed, Jigeeshu Vasishtha Divatia, Apeksh Patwa, Rakesh Garg, Ubaradka S Raveendra, Jeson Rajan Doctor, Dilip K Pawar, Singaravelu Ramesh