TY - GEN AU - Macklem,P T TI - The importance of defining respiratory muscle fatigue SN - 0003-0805 PY - 1990///0911 KW - Humans KW - Hypercapnia KW - etiology KW - Muscle Contraction KW - physiology KW - Respiratory Insufficiency KW - Respiratory Muscles KW - physiopathology KW - Terminology as Topic N1 - Publication Type: Comment; Editorial UR - https://doi.org/10.1164/ajrccm/142.2.274 ER -