title: Meta-analysis of botulinum toxin injection for chronic anal fissure: healing rates controversies.
authors.affiliation: Instituto Nacional de Ciencias Medicas y Nutricion, Salvador Zubiran, Mexico City, Mexico. omarvergara74@hotmail.com.
authors.forename: O
authors.initials: O
authors.lastname: Vergara-Fernández
authors.affiliation: Instituto Nacional de Ciencias Medicas y Nutricion, Salvador Zubiran, Mexico City, Mexico.
authors.forename: N
authors.initials: N
authors.lastname: Salgado-Nesme
authors.affiliation: Instituto Nacional de Ciencias Medicas y Nutricion, Salvador Zubiran, Mexico City, Mexico.
authors.forename: A
authors.initials: A
authors.lastname: Navarro-Navarro
authors.affiliation: Instituto Nacional de Ciencias Medicas y Nutricion, Salvador Zubiran, Mexico City, Mexico.
authors.forename: H A
authors.initials: HA
authors.lastname: Rangel-Ríos
mesh_terms: D001003:Anal Canal; D001905:Botulinum Toxins; D019274:Botulinum Toxins, Type A; D002908:Chronic Disease; D005401:Fissure in Ano; D006801:Humans; D016896:Treatment Outcome; D014945:Wound Healing
chemical_list: D001905:Botulinum Toxins; D019274:Botulinum Toxins, Type A