Properties pubmed_id and pii for AbstractRetrieval

pybliometrics/scopus/abstract_retrieval.py

@@ -340,6 +340,11 @@ def pageRange(self):
         """Page range."""
         return chained_get(self._json, ['coredata', 'prism:pageRange'])
 
+    @property
+    def pii(self):
+        """The PII (Publisher Item Identifier) of the document."""
+        return chained_get(self._json, ['coredata', 'pii'])
+
     @property
     def publicationName(self):
         """Name of source the document is published in."""
@@ -363,6 +368,11 @@ def publisheraddress(self):
         """Name of the publisher of the document."""
         return chained_get(self._head, ['source', 'publisher', 'publisheraddress'])
 
+    @property
+    def pubmed_id(self):
+        """The PubMed ID of the document."""
+        return chained_get(self._json, ['coredata', 'pubmed-id'])
+
     @property
     def refcount(self):
         """Number of references of an article.

pybliometrics/scopus/tests/test_AbstractRetrieval.py

@@ -310,6 +310,12 @@ def test_pageRange():
     assert_equal(ab8.pageRange, None)
 
 
+def test_pii():
+    assert_equal(ab4.pii, 'S0304407697000183')
+    assert_equal(ab5.pii, None)
+    assert_equal(ab6.pii, 'S0048969718335976')
+
+
 def test_publicationName():
     assert_equal(ab1.publicationName, 'ACS Catalysis')
     assert_equal(ab8.publicationName, None)
@@ -325,6 +331,11 @@ def test_publisheraddress():
     assert_equal(ab8.publisheraddress, None)
 
 
+def test_pubmed_id():
+    assert_equal(ab6.pubmed_id, '30240917')
+    assert_equal(ab7.pubmed_id, None)
+
+
 def test_refcount():
     assert_equal(ab4.refcount, '18')
     assert_equal(ab8.refcount, '48')