diff --git a/bcells/images/avnir_prepost.jpg b/bcells/images/avnir_prepost.jpg
new file mode 100644
index 0000000..ce09e91
Binary files /dev/null and b/bcells/images/avnir_prepost.jpg differ
diff --git a/bcells/images/vh_frequencies.png b/bcells/images/vh_frequencies.png
new file mode 100644
index 0000000..b468cc9
Binary files /dev/null and b/bcells/images/vh_frequencies.png differ
diff --git a/bcells/slides.html b/bcells/slides.html
index 1bd92b5..5128543 100755
--- a/bcells/slides.html
+++ b/bcells/slides.html
@@ -189,19 +189,9 @@ <h3>Memory cells can affinity mature</h3>
 						</div>
 						</section>
 				
-
-				<section>
-					<h3>Antibody feedback may limit adaptation</h3>
-					<img class="stretch" src="images/em_aff.png">
-						<div class="citation">
-							<a href="http://cobeylab.uchicago.edu/publications">
-								Childs et al. 2015
-							</a>
-						</div>
-				</section>
 				
 				<section>
-					<h3>...but diversify the repertoire</h3>
+					<h3>Ab feedback may diversify the repertoire</h3>
 					<img class="stretch" src="images/em_div.png">
 						<div class="citation">
 							<a href="http://cobeylab.uchicago.edu/publications">
@@ -246,9 +236,19 @@ <h3>Broadly neutralizing antibodies to flu elusive</h3>
 					<p>Will they dominate?
 				</section>
 				
+				<section>
+					<h3>"Restricted" responses to epitopes</h3>
+					<img class="stretch" src="images/vh_frequencies.png">
+						<div class="citation">
+							<a href="http://rstb.royalsocietypublishing.org/content/370/1676/20140238.long">
+								Dunand and Wilson 2015
+							</a>
+						</div>
+				</section>
+				
 				<section>
 					<h3>Genotype affects response to H5N1 vaccination</h3>
-					<img class="stretch" src="images/avnir_d80.png">
+					<img class="stretch" src="images/avnir_prepost.jpg">
 						<div class="citation">
 							<a href="http://www.nature.com/articles/srep20842">
 								Avnir et al. 2016