===== 📘 Definition: Contribution =====

**Contribution**:  
A contribution is a specific input, action, or resource provided by an individual or group that adds value to a project, study, procedure, or organization.

In clinical research and neurosurgery, contributions may be:

  * **Intellectual** – e.g., hypothesis generation, study design, data interpretation
  * **Practical** – e.g., surgical intervention, patient recruitment, imaging acquisition
  * **Financial** – e.g., funding, equipment, software licenses

==== 🧠 Examples ====
  * Designing a clinical trial protocol
  * Performing tumor resection surgery
  * Providing intraoperative imaging datasets
  * Statistical analysis and data visualization
  * Writing and revising a manuscript