diff --git a/ippisite/ippidb/models.py b/ippisite/ippidb/models.py
index 053d9abdb75923fc6027ff2e56dc429167a4c1dd..daa6ca0fce35dcaba40ae752be11e1cfdb5213f9 100644
--- a/ippisite/ippidb/models.py
+++ b/ippisite/ippidb/models.py
@@ -3,6 +3,8 @@ from __future__ import unicode_literals
 from django.db import models
 from django.forms import ModelForm
 
+from .ws import get_pubmed_info
+
 class Bibliography(models.Model):
     """
     Bibliography data table
@@ -17,13 +19,13 @@ class Bibliography(models.Model):
     journal_name = models.CharField('Journal name', max_length=50)
     authors_list = models.CharField('Authors list', max_length=500)
     biblio_year = models.PositiveSmallIntegerField('Year')
-    cytotox = models.BooleanField('Cytotoxicity data')
-    in_silico = models.BooleanField('in silico study performed')
-    in_vitro = models.BooleanField('in vitro study performed')
-    in_vivo = models.BooleanField('in vivo study performed')
-    in_cellulo = models.BooleanField('in cellulo study performed')
-    pharmacokinetic = models.BooleanField('pharmacokinetic study performed')
-    xray = models.BooleanField('contains xray data')
+    cytotox = models.BooleanField('Cytotoxicity data', default=False)
+    in_silico = models.BooleanField('in silico study performed', default=False)
+    in_vitro = models.BooleanField('in vitro study performed', default=False)
+    in_vivo = models.BooleanField('in vivo study performed', default=False)
+    in_cellulo = models.BooleanField('in cellulo study performed', default=False)
+    pharmacokinetic = models.BooleanField('pharmacokinetic study performed', default=False)
+    xray = models.BooleanField('contains xray data', default=False)
 
     def get_absolute_url(self):
         return reverse('bibliography-detail', args=[str(self.id)])