if (e.getOrganization() != null && e.getOrganization().getDisambiguatedOrganization() != null) doc.alumniOf.add(createOrg( e.getOrganization().getName(), e.getDepartmentName(), e.getOrganization().getDisambiguatedOrganization().getDisambiguationSource(), e.getOrganization().getDisambiguatedOrganization().getDisambiguatedOrganizationIdentifier(), e.getOrganization().getDisambiguatedOrganization().getExternalIdentifiers() ));