1.      Hamid Ikram, Peri Derysdale, P J Bones, W Chan. The non- invasive recognition of left atrial enlargement; Comparison of electro and echocardiographic measurement. Post Graduate Medical Journal;1977 July; 53: 356-359.

2.      Raul Chirife, Gilson S. Feitosa, William S. Frankl. Electrocardiographic detection of left atrial enlargement- correlation of  P wave with left atrial dimension by echocardiography. British Heart Journal. 1975; 37: 1281-1285.

3.      Hua Yang, Anna Woo, Daniel Monakier, Michal Jamorski, Ketie Fedwick, Douglas Wigle et al. Enlarged left atrial volume in hypertrophic cardiomyopathy, a marker for disease severity. Journal of the American Society echocardiography. 2005 October; 18(10): 1074-1082.

4.      Olivoho I, Cecchi F, Casey S A, Dolara A, Traverse JH,  Maron BJ et al. Impact of atrial fibrillation on the clinical course of hypertrophic cardiomyopathy. Circulation 2001; 104: 2517-2524.

5.      Roman W. Desanctis, David C, Dean and Edward, F Bland. Extreme left atrial enlargement- some characteristics features. Circulation. 1964 January: XXIX: 14-23.

6.      Water L Henry, Joel Marganroth, Alan S Pearl Man, Chester E Clark, David R Redwood, Samuel B Itscoitz et al. Relation between echocardiographically determined left atrial size and atrial fibrillation. Circulation 1976 February; 53(2): 273-279.

7.      Ratika Prakash, Martin S. Green, Charles R Kerr, Stuart J Connoly, George J Klein, Robert Sheldon et al. The association of left atrial size and occurrence of atrial fibrillation. A prospective cohort study from Canadian registry of atrial fibrillation. American Heart Journal. 2004 October; 148: 649-654.

8.      Kohsaka, Shun Sciacca, Robert R Sugioka et al. electrocardiographic left atrial abnormalities and risk of ischemic stroke. American Heart Association. 2005 November; 36(11): 2481-2483.

9.      Radi Macruz, Joseph K Perloff, Robert B. Case.  A method for the electrocardiogr-aphic  recognition of atrial enlargement. Circulation 1958 May; XVII: 882-889.

10.  Benedict A, Termini, Yu Chen Lee, Ballimone. Echocardiographic and electrocardiographic criteria for diagnosis left atrial enlargement. Southern Medical Journal. 1975 February; 68(2): 161-165.

11.  Kulkarni AG,  Mulay DV, Jilla P. A study of relation between left atrial size and atrial fibrillation. Journal of Associations of Physicians of India. 2002; 50: 1555.

12.  Samuel Levy, Martin Marrek, Philippe Coumel, Lowis Guize Jean Lekieffre, Lowis Medvedowsky et  al. characterization of different subjects of atrial  fibrillation in general practice in France- The ALFA study. Circulation 1999 June; 99: 3028-3035.

13.  Papzoglou NM. Atrial fibrillation and mitral stenosis: Circulation. 1974; XLIX: 1009—1020.

14.  Psutomo Iwasaki, Motoji Naka, Kunihide Hiramatsu, Takashi Yamada, Akiniro Niwa Toru Aizawa et al. Echocardiographic studies on the relationship between atrial fibrillation and atrial enlargement in patients with hyperthyroidism of graves’ disease. Cardiology 1989; 76: 10-17.

15.  Owen R Brown, Donald C Harrison, Richard L Popp. An improved method for electrocardiographic detection of left atrial enlargement. 1974 July; 50: 58-64.

16.  Alan D. Waggoner, Ajith V. Adyanthaya, Migvel A. Quinones, James K. Alexander. Left atrial enlargement- echocardiographic assessment of electrocardiographic criteria. Circulation. 1976 October; 54: 553-557.

17.  Patel DA, Lavie CJ, Milani RV, Shah S, Giliand Y (Winter 2009). Clinical Implications of Left Atrial Enlargement: A Review". The Ochsner Journal. 2009; 9 (4): 191–196.