TY - RPRT TI - Macrophage cell lines derived from major histocompatibility complex II-negative mice AU - Beharka, A. A. AU - Armstrong, J. W. AU - Chapes, S. K. AU - Spooner, B. S. PY - 1998 UR - https://ntrs.nasa.gov/citations/20040172636 ID - 20040172636 ER -