Effects of dexmedetomidine and clonidine as propofol adjuvants on intra-operative hemodynamics and recovery profiles in patients undergoing laparoscopic cholecystectomy: A prospective randomized comparative study. - Anjum N; Tabish H; Debdas S; Bani HP; Rajat C; Anjana Basu GD (Avicenna journal of medicine, 2015)