| WHO/OMS | http://www.who.org |
| National Institute for Clinical Excelence | http://www.nice.org.uk |
| National Institutes of Health | http://www.nih.gov |
| Sociedade Portuguesa de Endocrinologia | http://www.spedm.org |
| The Endocrine Society | http://www.endo-society.org |
| American Association of Clinical Endocrinologists | http://www.aace.com |
| Society for Endocrinology | http://www.endocrinology.org |
MID ANDERSON Cancer Center (Endocrine neoplasia & hormonal disorders) | http://www.manderson.org |
| National Cancer Institute | http://www.cancer.gov |
| American Thyroid Association | http://www.thyroid.org |
| Thyroid Disease Manager | http://www.thyroidmanager.org |
| European Journal of Endocrinology | http://www.eje.org |
| Human Growth Foundation | http://www.hgfound.org |
| Associação Protectora dos Diabéticos de Portugal | http://www.apdp.pt |
International Diabetes Federation | http://www.idf.org |
European Association for the Study of Diabetes | http://www.easd.org |
| British Diabetic Association | http://diabetes.org.uk/home.htm |
| American Diabetes Association | http://www.diabetes.org |
| Juvenile Diabetes Foundation | http://www.jdrf.org |
| Canadian Diabetes Association | http://www.diabetes.ca |
| Childen with diabetes | http://childrenwithdiabetes.com |
| Diabetes UK | http://www.diabetic.org.uk |
| Obesity on line | http://www.obesity-online.com |
| Association for the study of obesity | http://www.aso.org.uk |
| International Federation for the Surgery of Obesity | http://www.obesity-online.com |
| Medscape from Web (CME/Guidelines) | http://www.medscape.com |
| National Inst. of Diabetes & Digestive & Kidney Disease | http://www.niddk.nih.gov |
| Food and Drug Administration | http://www.fda.gov |
| Nature genetics | http://genetics.nature.com |
| Nature | http://www.nature.com |
| U.S. National Library of Medicine | http://www.nlm.nih.gov |
| Direcção-Geral da Saúde | http://www.dgsaude.pt |
| Sociedade Portuguesa de Diabetologia | http://www.spd.pt |
Sociedade Portuguesa de Endocrinologia, Diabetes e Metabolismo | http://www.spedm.org |
Serviço de Endocrinologia, Diabetes e Metabolismo dos HUC | http://www.s-endocrinologia-huc.org |
| UCSC Genome Bioinformatics | http://genome.ucsc.edu |
| BioCritique | http://biocritique.com |
| Thyroid disease manager | http://www.thyroidmanager.org |
Pituitary Network Association | http://www.pituitary.org |
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