TY - RPRT TI - Molecular differences between type A botulinum neurotoxin and its toxoid. AU - B R Singh AU - B R DasGupta PY - 1989 DO - 10.1016/0041-0101(89)90202-x UR - https://pubmed.ncbi.nlm.nih.gov/2728029/ ID - 2728029 ER -