First Method = {A-Z} <br>Second Method = {A-Z}<br>Third Method = {A-Z}.<br>Fourth Method = {A-Z}.Note: Input may contain combination of all above methods.Please help me to find out correct Regex Formula for splitting below paragraphs.Input paragraphs:{A}<br>Vasa. <a href="http:///full/87/7/540" target="_blank">"Nitric Oxide Activates Telomerase and Delays Endothelial Cell Senescence"</a> Circulation Research. 2000;87:540-542<br><br>For a more detailed discussion of the mechanisms underlying the relationship between nitric oxide and telomerase activation, see this study:<br>Farsetti. <a href="http://quot;>The telomerase tale in vascular aging"</a> Journal of Applied Physiology January 2009 vol. 106 no. 1 333-337<br><br>{B} <br>Chauhan. <a href="http://science?_ob=ArticleURL&_udi=B6T18-3P945X0-8&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_version=1&_urlVersion=0&_userid=10&md5=c130cff602472f25bd5680ea3047490c" target="_blank">"Aging-Associated Endothelial Dysfunction in Humans Is Reversed by L-Arginine"</a> Journal of the American College of Cardiology Volume 28, Issue 7, December 1996, Pages 1796-1804<br><br>{C}.<br>Monajemi H.<a href="http://11487030" target="_blank">Gene Expression in Atherogenesis"</a>. <i>Thromb Haemost</i>. 2001 Jul;86(1):404-12.<br>{D}.Britten M. The role of endothelial function of ischemic manifestations of coronary atherosclerosis<br>Kimura Y. Impaired endothelial function in hypertensive elderly patients evaluated by high..<br><br>{E}.<br>9. In Cells, Aging and Human Disease, page 170, Michael Fossel writes:<br>In comparing young normal human aortic endothelial cells to senescent endothelial cells and endothelial cells imoortalized with hTERT, we find differences. Compared to young endothelial cells, senescent endothelial cells show a decreased production and activity of NO, changes critial in atherogenesis and hypertension. Similarly, senescent endothelial cells demonstrate increased monocyte adhesion, again implicated in atherogenesis. [..] In all cases, these differences are amerliorated or normalized by hTERT immortalization.<br><br>{F}.<br>Chang E, Harley CB. Telomere length and replicative aging in human vascular tissues.