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Cutaneous delayed-type hypersensitivity responses to a panel of recall antigens (PPD, candidin, and trychophytin) before and 12 weeks after (two doses) vaccination with the dendritic cell–tumor cell hybrids. Patients who responded to at least one of the antigens, with an induration of at least 4 mm, were considered responders
| Before vaccination | After vaccination | |
|---|---|---|
| Responders | 8 | 13 |
| Nonresponders | 10 | 5 |
