<https://dralinpopescu.ro/imunitatea-specifica-si-cea-nespecifica-aliatii-starii-de-sanatate/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://mail.noisafimsanatosi.ro/imunitatea-specifica-si-cea-nespecifica-aliatii-starii-de-sanatate/>