http://general-terms.thesaurus.ekt.gr/vocabhttp://general-terms.thesaurus.ekt.gr/vocab?tema=11278social welfare http://general-terms.thesaurus.ekt.gr/vocab?tema=11278 social housing RT http://general-terms.thesaurus.ekt.gr/vocab?tema=11278 sociology of health RT http://general-terms.thesaurus.ekt.gr/vocab?tema=11278 social security NT http://general-terms.thesaurus.ekt.gr/vocab?tema=11278 maternity protection NT http://general-terms.thesaurus.ekt.gr/vocab?tema=11278 student welfare NT