TY - CHAP M1 - Book, Section TI - Waste Gas Evacuation Systems A1 - de Jesus, Matthew A2 - Freeman, Brian S. A2 - Berger, Jeffrey S. PY - 2014 T2 - Anesthesiology Core Review: Part One Basic Exam AB - The National Institute for Occupational Safety and Health (NIOSH), while unable to define safe levels of exposure, recommends limiting trace gas levels to: SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/10/08 UR - accessanesthesiology.mhmedical.com/content.aspx?aid=1102566168 ER -