@misc{indiciae718be3d0c069, title = {Botulinum toxin--the need for a controlled study.}, author = {L Kowal}, year = {1988}, doi = {10.1111/j.1442-9071.1988.tb01246.x}, url = {https://pubmed.ncbi.nlm.nih.gov/3073799/}, note = {Source identifier: 3073799} }