Prognostic value of suction drain tip culture in determining joint infection in primary and non-infected revision total hip arthroplasty: a prospective comparative study and review of the literature. - Petsatodis, George; Parziali, Marina; Christodoulou, Anastasios G.; Hatzokos, Ippokratis; Chalidis, Byron E. (Archives of Orthopaedic & Trauma Surgery, 2009)