title: Letter: Partial cardiopulmonary bypass.
mesh_terms: D005112:Extracorporeal Circulation; D000860:Hypoxia; D007442:Intubation, Intratracheal; D009729:Nursing; D010107:Oxygenators, Membrane; D011024:Pneumonia, Viral / Q000628:therapy; D011175:Positive-Pressure Respiration; D012131:Respiratory Insufficiency / Q000628:therapy; D014140:Tracheotomy