TY - GEN AU - Harper,Martin AU - Slaven,James E AU - Pang,Thomas W S TI - Continued participation in an asbestos fiber-counting proficiency test with relocatable grid slides SN - 1464-0333 PY - 2009///0428 KW - Asbestos KW - analysis KW - Asbestos, Amosite KW - Asbestos, Serpentine KW - Environmental Monitoring KW - methods KW - Humans KW - Laboratories KW - standards KW - Microscopy KW - Reference Standards KW - United States N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S UR - https://doi.org/10.1039/b813893a ER -