tomsing1

All requests start with this URL: https://eutils.ncbi.nlm.nih.gov/entrez/eutils/

• Use lowercase characters for all parameters except &WebEnv.
• Special characters, such as quotation marks (“) or the # symbol used in referring to a query key on the History server, should be represented by their URL encodings (%22 for “; %23 for #).
• If a space is required, use a plus sign (+) instead of a space:

Incorrect: &id=352, 25125, 234
Correct: &id=352,25125,234