TY - GEN AU - Cooper,R M TI - Negative pressure ventilation during tracheal tube exchange SN - 0003-3022 PY - 1995///0721 KW - Humans KW - Intubation, Intratracheal KW - Respiration, Artificial N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1097/00000542-199506000-00029 ER -