We often provide training and training assistance services to healthcare organizations and seek to improve provider and clinic practices to support a mulit-displincary and evidance-based approach to sexual health care. STD clinical training courses provide up-to-date information to public and private clinicians who diagnose, treat, and manage patients with STDs and HIV. Most courses devote 50% of class time to clinical and laboratory experience under the guidance of a qualified preceptor. Standard clinical training courses are 1- to 5-days in length, but PTCs also offer clinical training courses in the following formats: Grand rounds, teleconferencing, home study, on-site courses, and web-based courses.