| Subject | English | Spanish |
| social.sc., health., med. | opioid substitution | tratamiento substitutivo |
| social.sc., health., med. | opioid substitution | tratamiento sustitutivo de opiáceos |
| social.sc., health., med. | opioid substitution | tratamiento de sustitución |
| social.sc., health., med. | opioid substitution therapy | tratamiento de sustitución |
| social.sc., health., med. | opioid substitution therapy | tratamiento substitutivo |
| social.sc., health., med. | opioid substitution therapy | tratamiento sustitutivo de opiáceos |
| social.sc., health., med. | opioid substitution treatment | tratamiento de sustitución |
| social.sc., health., med. | opioid substitution treatment | tratamiento substitutivo |
| social.sc., health., med. | opioid substitution treatment | tratamiento sustitutivo de opiáceos |
