| prov:value
| - They varied in the age of subjects, sample size, type of vaccine (virus content, stabilization), site of inoculation (arm, thigh, interscapular region), level of inoculation (subcutaneous injection, jet injector), method of ascertainment (questionnaire, diary, physical examination, including measurement of body temperature and inspection of site reactions and lymphadenopathy), and simultaneous adm
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