{"topic_id":"exotic_gerbil_neoplasia","category":"exotic-pet-health","context":"---\ntopic_id: exotic_gerbil_neoplasia\ncategory: exotic-pet-health\ntitle: \"Gerbil neoplasia: high spontaneous tumor incidence (25–40%) in gerbils over 2–3 years old\"\nlang: en\nsource: \"Merck Veterinary Manual — Gerbil neoplasia: high spontaneous tumor incidence (25–40%) in gerbils over 2–3 years old\"\nsource_file: pdf-raw/exotic-health/mvm_gerbil.txt\ndate_parsed: 2026-07-28\ntokens_estimated: 90\nverified: true\nverification: c1_substring\nsource_document: \"Merck Veterinary Manual (first-hand extracted text)\"\ncitation:\n  authority: \"Merck Veterinary Manual\"\n  title: \"Gerbil neoplasia: high spontaneous tumor incidence (25–40%) in gerbils over 2–3 years old\"\n  url: \"https://www.merckvetmanual.com/exotic-and-laboratory-animals/rodents/gerbils\"\n  retrieved: \"2026-07-28\"\n  ref: \"Merck Veterinary Manual\"\n  doc_type: \"veterinary reference (professional version)\"\n  needs_review: false\n---\n\n# Gerbil neoplasia: high spontaneous tumor incidence (25–40%) in gerbils over 2–3 years old\n\nVerbatim first-hand facts extracted from the Merck Veterinary Manual (first-hand saved source `pdf-raw/exotic-health/mvm_gerbil.txt`). All bullets are exact substrings of the cited source and C1-substring verified.\n\n## Verbatim clinical facts (C1 substrings of source_file)\n> Studies of Mongolian gerbil laboratory colonies have reported a high incidence of spontaneous neoplasia, with a 25–40% incidence in gerbils > 2–3 years old ( 15 , 16 ).\n\nSource: `pdf-raw/exotic-health/mvm_gerbil.txt` (first-hand Merck Veterinary Manual text).\n\n## Claims (verified C1 substrings of source_file)\n- `Studies of Mongolian gerbil laboratory colonies have reported a high incidence of spontaneous neoplasia, with a 25–40% incidence in gerbils > 2–3 years old ( 15 , 16 ).`\n","sources":["exotic-pet-health — Gerbil neoplasia: high spontaneous tumor incidence (25–40%) in gerbils over 2–3 years old (retrieved 2026-07-28)"],"source":{"authority":"exotic-pet-health","title":"Gerbil neoplasia: high spontaneous tumor incidence (25–40%) in gerbils over 2–3 years old","url":"https://www.merckvetmanual.com/exotic-and-laboratory-animals/rodents/gerbils","retrieved":"2026-07-28","ref":"","doc_type":"official PDF","source_document":"Merck Veterinary Manual (first-hand extracted text)","verification_file":"pdf-raw/exotic-health/mvm_gerbil.txt"},"source_document":"Merck Veterinary Manual (first-hand extracted text)","source_file":"pdf-raw/exotic-health/mvm_gerbil.txt","tokens_estimated":90,"generated_at":null,"tip":"Use /api/v1/topics to discover more topics. /api/v1/nutrient for precise single-point queries. /api/v1/cross_compare for 2-3 standard comparisons."}