['To explore the reasons why general practitioners do not always implement best evidence.', 'Qualitative study using Balint-style groups.', 'Primary care.', '19 general practitioners.', 'Identifiable themes that indicate barriers to implementation.', "Six main themes were identified that affected the implementation process: the personal and professional experiences of the general practitioners; the patient-doctor relationship; a perceived tension between primary and secondary care; general practitioners' feelings about their patients and the evidence; and logistical problems. Doctors are aware that their choice of words with patients can affect patients' decisions and whether evidence is implemented."] Do why general practitioners implement evidence : qualitative study?