Severity: Warning
Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
Filename: helpers/my_audit_helper.php
Line Number: 176
Backtrace:
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3122
Function: getPubMedXML
File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global
File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword
File: /var/www/html/index.php
Line: 316
Function: require_once
Advances in cell sorting and GFP knock-in technology have made it possible to identify rare hematopoietic cells in murine bone marrow that are undergoing lymphocyte fate specification. Steroid hormones also represent important research tools for investigating relationships between different categories of lympho-hematopoietic precursors. By selectively blocking entry into and progression within lymphoid lineages, the hormones probably have a major influence on numbers of lymphocytes that are produced under normal circumstances. These issues are discussed within the context of developmental age-dependent changes that occur in the lymphopoietic process.
Download full-text PDF |
Source |
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http://dx.doi.org/10.1016/s1044532302000738 | DOI Listing |
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