| The existence of a clearly defined management structure, however, is crucial to the success of STD control. |
| In this case, the bottle closing mechanisms are activated by the STD system each time a required depth is reached. |
| The 'start' date and maximum duration of STD varies from one organization to the next, and is usually specified in its sick day policies. |
| This secondary care can be provided by categorical STD clinics or dermato-venereology departments where they exist. |
| To ensure effective STD care, the following factors need to be put in place. |
| One hundred and fifty males with urethritis and 450 women with mucopurulent cervicitis attended the STD clinic during the study period. |
