TY - RPRT TI - Does botulinum toxin injection make esophagomyotomy a more difficult operation? AU - S Horgan AU - K Hudda AU - T Eubanks AU - J McAllister AU - C A Pellegrini PY - 1999 DO - 10.1007/s004649901044 UR - https://pubmed.ncbi.nlm.nih.gov/10347294/ ID - 10347294 ER -