| Name | Info | Provider | Link |
|---|---|---|---|
| Carcinoid Tumors | free resource | MedlinePlus Health Information | https://medlineplus.gov/carcinoidtumors.html |
| subscription/membership/fee required | Sercrisma International S.L. | http://www.hh.um.es/Abstracts/Vol_28/28_1/28_1_15.htm | |
| free resource | NCI CPTC Antibody Characterization Program | https://antibodies.cancer.gov/detail/CPTC-CHGA-1 |