TY - RPRT TI - Detection of electron paramagnetic resonance absorption using frequency modulation. AU - Hiroshi Hirata AU - Toshifumi Kuyama AU - Mitsuhiro Ono AU - Yuhei Shimoyama PY - 2003 DO - 10.1016/s1090-7807(03)00236-2 UR - https://pubmed.ncbi.nlm.nih.gov/14511592/ ID - 14511592 ER -