John 1994.
| Methods | Individual randomization, random numbers table. | |
| Participants | 184 transplant or dialysis patients in India. | |
| Interventions | Isoniazid 300 mg or placebo for one year. Low compliance. | |
| Outcomes | 1. Active tuberculosis 2. Hepatitis 3. Death | |
| Notes | High rates of drop out and hepatitis in both groups. | |