TY - RPRT TI - Electron paramagnetic resonance methods for measuring pH gradients, transmembrane potentials, and membrane dynamics. AU - D S Cafiso PY - 1989 DO - 10.1016/s0076-6879(89)72022-x UR - https://pubmed.ncbi.nlm.nih.gov/2546014/ ID - 2546014 ER -