Ratanapo, S., Srivali, N., Cheungpasitporn, W., Suksaranjit, P., Chongnarungsin, D., & Katz, D. H. (2013). Intermittent manifestation of pre-excitation syndrome: "this door is not open 24/7". Int J Cardiol, 168(3), 2938–2940. https://doi.org/10.1016/j.ijcard.2013.03.175

Ratanapo, Supawat, Narat Srivali, Wisit Cheungpasitporn, Promporn Suksaranjit, Daych Chongnarungsin, and Daniel H. Katz. “Intermittent manifestation of pre-excitation syndrome: "this door is not open 24/7".” Int J Cardiol 168, no. 3 (October 3, 2013): 2938–40. https://doi.org/10.1016/j.ijcard.2013.03.175.

Ratanapo S, Srivali N, Cheungpasitporn W, Suksaranjit P, Chongnarungsin D, Katz DH. Intermittent manifestation of pre-excitation syndrome: "this door is not open 24/7". Int J Cardiol. 2013 Oct 3;168(3):2938–40.

Ratanapo, Supawat, et al. “Intermittent manifestation of pre-excitation syndrome: "this door is not open 24/7".” Int J Cardiol, vol. 168, no. 3, Oct. 2013, pp. 2938–40. Pubmed, doi:10.1016/j.ijcard.2013.03.175.

Ratanapo S, Srivali N, Cheungpasitporn W, Suksaranjit P, Chongnarungsin D, Katz DH. Intermittent manifestation of pre-excitation syndrome: "this door is not open 24/7". Int J Cardiol. 2013 Oct 3;168(3):2938–2940.