Table 1. Factors Thought to Affect Diffusion.
| Factor | Does It Affect Diffusion? |
| Protein composition | No |
| Molecular size | No |
| Injection volume | Yes |
| Injection dose | Yes |
| Injection concentration | Yes |
| Injection method | Maybe |
| Factor | Does It Affect Diffusion? |
| Protein composition | No |
| Molecular size | No |
| Injection volume | Yes |
| Injection dose | Yes |
| Injection concentration | Yes |
| Injection method | Maybe |