Classification 2025 Summer Edition
Worldwide source of medical classification resources×
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Class Index
Scientific
Q 179.9 - Q 180.6
(Form number 20 or 20.5 in any NLM schedule where applicable)
Fields outside the NLM area, in appropriate LC number
See also Ethics, Research
See also Information Services
See also Systems Analysis
See also Biomedical Research
See also Dental Research
See also Nursing Research