Genre
- Catalog, Publisher2
- Catalogs320
- Certificates31
- Chart5
- Charts12
- Charts (graphic documents)157
- Chronology9
- Clippings (information artifacts)9
- Collected Correspondence81
- Collected Work53
- Collected Works85
- Collection3
- Collections10
- Comparative Study26
- Conferences47
- Congress51
- Congresses284
- Congressional records23
- Consensus Development Conference3
- Consensus Development Conference, NIH10