Lopes, A.I., Gonçalves, J., Palha, A.M., Furtado, F. and Marques, A. 2004. Peutz-Jeghers syndrome: variability of gastrointestinal expression at pediatric age. Acta Médica Portuguesa. 17, 6 (Dec. 2004), 445–450. DOI:https://doi.org/10.20344/amp.1121.