Translations:Advanced Field Epi:Manual 1 - Disease Investigation/298/en
| style="background-color:#ffffff;border:0.5pt solid #00000a;padding-top:0cm;padding-bottom:0cm;padding-left:0.199cm;padding-right:0.191cm;"| * May be problems with external validity, particularly to diverse target population
- Can be expensive depending on the intervention and situation
- Requires significant cooperation and rigorous management