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APA Citation
Betalli, P., Carretto, E., Cananzi, M., Zanatta, L., Salvador, R., Galeazzi, F., Guariso, G., Gamba, P., & Costantini, M. (2013). autism and esophageal achalasia in childhood: a possible correlation? Report on three cases. Diseases of the esophagus, 26(3), 237–240. http://access.bl.uk/ark:/81055/vdc_100025074380.0x00004c