TY - RPRT TI - Direct photoaffinity labeling with cyclic nucleotides. AU - R S Antonoff AU - T Obrig AU - J J Ferguson PY - 1977 DO - 10.1016/s0076-6879(77)46038-5 UR - https://pubmed.ncbi.nlm.nih.gov/198631/ ID - 198631 ER -