11. Medic has flourished by concentrating on systems used in managing physician group practices . 12. In group practices , the preprinted portion of the prescription may contain multiple prescribers'names. 13. Sansum Clinic was among the earliest multi-specialty group practices established in the nation. 14. HMOs are organized either as group practices or individual practice associations. 15. Smith said while watching one of the four 18-player groups practice Tuesday morning. 16. Later the group practiced " Mandiani, " a Guinea celebration song. 17. The Gibraltar Health Authority is funded through the Gibraltar Group Practice Medical Scheme. 18. Another group practiced stopping a riot in which protesters threw firebombs. 19. She co-owns the New York City-based group practice Alternatives Counseling. 20. The deal was billed as creating the third-largest physician group practice in the nation.