ああ、そうか。ncbiのリンクも辿れないのですね。
IPブロックおそろしや。
リンク先の内容は以下のとおりです。
User Requirements
Do not overload NCBI's systems. Users intending to send numerous queries and/or retrieve large numbers of records from Entrez should comply with the following:
Run retrieval scripts on weekends or between 9 pm and 5 am Eastern Time weekdays for any series of more than 100 requests.
Send E-utilities requests to http://eutils.ncbi.nlm.nih.gov, not the standard NCBI Web address.
Make no more than 3 requests every 1 second.
Use the URL parameter email, and tool for distributed software, so that we can track your project and contact you if there is a problem.
NCBI's Disclaimer and Copyright notice must be evident to users of your service. NLM does not claim the copyright on the abstracts in PubMed; however, journal publishers or authors may. NLM provides no legal advice concerning distribution of copyrighted materials, consult your legal counsel. |
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