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Authors: S Frankel; J Eachus; N Pearson; R Greenwood; P Chan; T J Peters; J Donovan; G D Smith; P Dieppe
Journal: Lancet Date: 1999-04-17 Impact factor: 79.321

7. Increased cholecystectomy rate after the introduction of laparoscopic cholecystectomy.

Authors: A P Legorreta; J H Silber; G N Costantino; R W Kobylinski; S L Zatz
Journal: JAMA Date: 1993 Sep 22-29 Impact factor: 56.272

8. International variation in intervention rates. What are the implications for patient selection?

Authors: N Black; M E Glickman; J Ding; A B Flood
Journal: Int J Technol Assess Health Care Date: 1995 Impact factor: 2.188

9. Diagnosis and treatment of coronary disease: comparison of doctors' attitudes in the USA and the UK.

Authors: R H Brook; J B Kosecoff; R E Park; M R Chassin; C M Winslow; J R Hampton
Journal: Lancet Date: 1988-04-02 Impact factor: 79.321

9 in total