title: [A thirteen month old child presenting with loss of muscle tone in extremities and lack of sedestation].
authors.affiliation: Hospital Pediátrico de Tacubaya, Secretaria de Salud, México DF, México. hptacubaya@salud.gob.mx
authors.forename: Carlos Javier
authors.initials: CJ
authors.lastname: Arnaiz-Toledo
authors.forename: Luis Rodolfo
authors.initials: LR
authors.lastname: Rodríguez-Villalobos
mesh_terms: D006801:Humans; D007223:Infant; D007866:Leg; D008297:Male; D009123:Muscle Hypotonia / Q000209:etiology; D014897:Spinal Muscular Atrophies of Childhood / Q000150:complications / Q000175:diagnosis*