text: Primary preventive measures of<unk>  obstruction syndrome include minimizing risks related to the transplant process such as the source of the graft (allogeneic greater than autologous), choice of chemotherapy and use of antimicrobials. The exposure to the hepatotoxic agents should be minimized and preexisting liver diseases should be managed. The prophylaxis for graft vs host disease should be considered.
option_0: Sinusoidal obstruction syndrome primary prevention
option_1: Sinusoidal obstruction syndrome medical therapy
option_2: Mastoiditis secondary prevention
option_3: Mastoiditis primary prevention
option_4: Laryngitis secondary prevention
option_5: Laryngitis primary prevention
option_6: Pharyngitis primary prevention
option_7: Pharyngitis secondary prevention