document.write('<ul>');
document.write('<li><b><a href="https://www.paypal.com/cgi-bin/webscr?cmd=_xclick&business=sales%40medrounds%2eorg&item_name=Essential%20Optics%20Review%20By%20Mark%20E%20Wilkinson&item_number=976968916&amount=34%2e95&no_shipping=0&no_note=1&currency_code=USD&lc=US&bn=PP%2dBuyNowBF&charset=UTF%2d8" target="_blank""><u>Purchase <i>Essential Optics Review for the Boards</i>.</u></b></a><BR> <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_xclick&business=sales%40medrounds%2eorg&item_name=Essential%20Optics%20Review%20By%20Mark%20E%20Wilkinson&item_number=976968916&amount=34%2e95&no_shipping=0&no_note=1&currency_code=USD&lc=US&bn=PP%2dBuyNowBF&charset=UTF%2d8" target="_blank"><img src="http://www.medrounds.org/bookstore/images/paypal-cards2.jpg"></li>');
document.write('<li><a href="http://medrounds.myfundrazor.org">Support Open-Access Publishing on Medrounds</a></li>');
document.write('<li><a href="http://store.medrounds.org/shop.php?k=optics&mode=Books">More Books on Optics</a></li>');
document.write('<li><a href="http://store.medrounds.org/shop.php?k=ophthalmology+review&mode=Books">More Books for Board Review</a></li>');
document.write('</ul>');