Marañón G. Informe sobre el estado sanitario de Las Hurdes. La Medicina Iberica 1: 232, 1922.
Marañón G. El bocio en España. Anales de Medicina y Cirugía Española 15:1, 1928.
Valls Medina A. Frequences et types de consanguinité dans quelques provinces d’Espagne. Actes VI Congr. Intern. Sci. Anthrop. et Ethnol., Paris, 1960.
Casado A., Sánchez-Franco F., Pellicer A., Lopez M.E. Estudios hematológicos en una muestra de población de la comarca hurdana. Trabajos de Antropología 17: 21, 1973.
Escobar del Rey F., Sánchez-Franco F., Ferreiro L. El bocio endémico en Las Hurdes. Il-Parametros que indican la existencia de una deficiencia de lodo. Rev. Clin. Esp. 130:7, 1973.
Escobar del Rey F., Gomez Pan A., Obregon M.J., Arnao M.R.D., Aranda A. Morreale de Escobar G. A survey of school children from a severe endemic goiter area in Spain. Q.J. Med. 198:233, 1981.
Maisterrena J.A., Tovar E., Cancino A., Serrano O. Nutrition and endemic goiter in Mexico. J. Clin. Endocrinol. Metab. 24:166, 1964.
Koutras D.A., Christakis G., Trichopoulos D. Endemic goiter in Greece: Nutritional status, growth and skeletal development of goitrous and non goitrous populations. Am. J. Clin. Nutr. 26:1360, 1973.
Ingenbleek Y., Luypaert B., De Nayer Ph. Nutritional status and endemic goiter. Lancet 1:388, 1980.
Galvao Lobo L.C., Quelce-Salgado A., Freire-Maia A. Studies on endemic goiter and cretinism in Brazil. 2. Genetic studies. In: Stanbury J.B. (Ed.), Endemic goiter. PAHO, WHO Scientific Publication N. 193, Washington D.C., 1969, p. 208.
Perez C., Scrimshaw N.S., Muñoz J.A. Technique of endemic goiter surveys. In: Endemic Goiter WHO, Monograph Series N. 44, Geneva, 1960, p. 369.
Benotti J., Benotti N. Protein bound total iodine and butanol extractable iodine by partial automation. Clin. Chem. 9:408, 1963.
Henry R.J. Clinical chemistry, principles and technics. Hoeber Med. Division, Harper and Row Publishers Inc. New York, 1964, p. 175.
Peters J.H. Colorimetric determination of creatinine in urine. J. Biol. Chem. 746:179, 1942.
Matamos B., Koutras D.A., Kostamis P., Kralios A.C., Rigopoulos G., Zerefos N. Endemic goiter in Greece: epidemiologic and genetic studies. J. Clin. Endocrinol. Metab. 26: 688, 1966.
Buttfield J.H., Hetzel B.S. Endemic goiter in Eastern New Guinea. Bull. WHO 36: 243, 1967.
Choufoer J.C., van Rhyn M., Kassenaar A.A.H., Querido A. Endemic goiter in Western New Guinea: iodine metabolism in goitrous and non-goitrous subjects. J. Clin. Endocrinol. Metab. 23:1203, 1963.
Picon D., Alleyne A.O., Seakins A. Hydroxyproline and creatinine excretions in infantile protein malnutrition. Clin. Sci. Mol. Med. 29: 517, 1965.
Delange F., Thilly C., Pourbaiz P., Ermans A.M. Treatment of Idjwi island endemic goiter by iodized oil. In: Stanbury J.B. (Ed.), Endemic goiter. PAHO, WHO Scientific Publication N 193, Washington D.C., 1969, p. 118.
Fierro-Benitez R., Ramirez I., Estrella E., Jaramillo C., Diaz C., Urresta J. Iodized oil in the prevention of endemic goiter and associated defects in the andean region of Ecuador. In: Stanbury J.B. (Ed.), Endemic goiter. PAHO, WHO Scientific Publication N. 193, Washington D.C., 1969, p.306.