These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.
3. From randomized controlled trials to observational studies. Silverman SL Am J Med; 2009 Feb; 122(2):114-20. PubMed ID: 19185083 [TBL] [Abstract][Full Text] [Related]
4. Strengthening the case for disease management effectiveness: un-hiding the hidden bias. Linden A; Adams JL; Roberts N J Eval Clin Pract; 2006 Apr; 12(2):140-7. PubMed ID: 16579822 [TBL] [Abstract][Full Text] [Related]
5. Expanding the evidence base in transplantation: toward a balanced approach. van der Meulen J Transplantation; 2008 Jul; 86(1):30-1. PubMed ID: 18622274 [TBL] [Abstract][Full Text] [Related]
7. [Observation studies are essential in many medical questions. But there is a risk of systemic errors]. Thelander S Lakartidningen; 2001 Feb; 98(8):794-6. PubMed ID: 11265560 [No Abstract] [Full Text] [Related]
8. [The use observation--an observation of use. Does it have to be published?]. Fortunat S Dtsch Med Wochenschr; 2003 Oct; 128(42):2215; author reply 2215. PubMed ID: 14562224 [No Abstract] [Full Text] [Related]
9. Observational research databases in renal disease. Shlipak M; Stehman-Breen C J Am Soc Nephrol; 2005 Dec; 16(12):3477-84. PubMed ID: 16280468 [TBL] [Abstract][Full Text] [Related]
10. Complementarity comes of age. Black N Transplantation; 2008 Jul; 86(1):28-9. PubMed ID: 18622273 [TBL] [Abstract][Full Text] [Related]
11. The planning of clinical studies: random and not so random assignments. Debanne SM Gastrointest Endosc; 2001 Mar; 53(3):404-5. PubMed ID: 11231421 [No Abstract] [Full Text] [Related]
13. The value of observational research in liver diseases. Lindor RA; Lindor KD Hepatology; 2011 Jan; 53(1):1-3. PubMed ID: 21254155 [No Abstract] [Full Text] [Related]
14. Evidence in transplantation: randomized versus nonrandomized studies. Morris PJ; Monaco AP Transplantation; 2008 Jul; 86(1):16-7. PubMed ID: 18622270 [No Abstract] [Full Text] [Related]