@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix fdp: <http://rdf.biosemantics.org/ontologies/fdp-o#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix datacite: <http://purl.org/spar/datacite/> .

<http://purl.org/castor/study/silica>
  a dcat:Resource ;
  dc:title "CALiFe"@en ;
  rdfs:label "CALiFe"@en ;
  dc:hasVersion "1.0.0" ;
  dc:description """Rationale: Chronic diseases might 
Objectives: To determine if patients with asthma experience a worsened quality of life and are more prone for anxiety during a pandemic. 
Study design: It is a cross-sectional survey study in which we will compare asthma related quality of life, selfmastery and anxiety development in patients with asthma. These surveys will be compared to surveys that were answered a year before the COVID-19 pandemic occurred. 
Study population: We aim to enrol 100 asthma patients and 25 healthy controls for this study. All invited participants were previously enrolled in either the Breathe study (NL5752) or the Grandma study (NCT03278561). All participants agreed on their informed consent to be invited to participate in other research. Asthma patients in these studies were aged 12-80 years with proven asthma (airway responsiveness proven by reversibility and histamine PC20 < 8 mg/ml)) and were treated on at least GINA step 3 treatment. Healthy controls did not suffer from pulmonary disease. None of the participants were current smokers
"""@en ;
  dcat:contactPoint <https://orcid.org/0000-0002-9615-1123> ;
  dc:publisher <http://purl.org/castor/fdp/organization/franciscua-gasthuis-vlietland-5e96bccccbdbe> ;
  dc:language <http://id.loc.gov/vocabulary/iso639-1/en> ;
  fdp:metadataIdentifier <http://purl.org/castor/study/silica#identifier> ;
  fdp:metadataIssued "2020-06-21T19:50:39"^^xsd:dateTime ;
  fdp:metadataModified "2020-04-15T09:50:39"^^xsd:dateTime ;
  dc:isPartOf <http://purl.org/castor/fdp/catalog/covid-19> .

<https://orcid.org/0000-0002-9615-1123>
  a foaf:Person ;
  foaf:name "Geertje Maria de Boer" .

<http://purl.org/castor/fdp/organization/franciscua-gasthuis-vlietland-5e96bccccbdbe>
  a foaf:Organization ;
  foaf:name "Franciscua Gasthuis & Vlietland" ;
  dc:spacial <http://purl.org/castor/fdp/country/NL> .

<http://purl.org/castor/study/silica#identifier>
  a datacite:Identifier ;
  dc:identifier <http://purl.org/castor/study/silica> .