diff --git a/dwinst/pnas.csl b/dwinst/pnas.csl
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+<?xml version="1.0" encoding="utf-8"?>
+<style xmlns="http://purl.org/net/xbiblio/csl" class="in-text" version="1.0" demote-non-dropping-particle="sort-only" default-locale="en-US">
+  <info>
+    <title>Proceedings of the National Academy of Sciences of the United States of America</title>
+    <title-short>PNAS</title-short>
+    <id>http://www.zotero.org/styles/pnas</id>
+    <link href="http://www.zotero.org/styles/pnas" rel="self"/>
+    <link href="http://www.pnas.org/site/authors/procedures.xhtml" rel="documentation"/>
+    <author>
+      <name>Julian Onions</name>
+      <email>julian.onions@gmail.com</email>
+    </author>
+    <contributor>
+      <name>Rintze Zelle</name>
+      <uri>http://twitter.com/rintzezelle</uri>
+    </contributor>
+    <contributor>
+      <name>Bela Hausmann</name>
+      <uri>https://github.com/and3k</uri>
+    </contributor>
+    <contributor>
+      <name>Patrick O'Brien</name>
+    </contributor>
+    <category citation-format="numeric"/>
+    <category field="science"/>
+    <issn>0027-8424</issn>
+    <eissn>1091-6490</eissn>
+    <summary>The Proceedings of the National Academy of Sciences Journal style as per the updated guidelines from 04/2019.</summary>
+    <updated>2024-03-27T16:45:36+00:00</updated>
+    <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
+  </info>
+  <macro name="editor">
+    <names variable="editor" prefix=" " delimiter=", ">
+      <name delimiter-precedes-last="always" initialize-with=". " sort-separator=" "/>
+      <et-al font-style="italic"/>
+      <label form="short" text-case="capitalize-first" strip-periods="false" prefix=", "/>
+    </names>
+  </macro>
+  <macro name="author">
+    <names variable="author">
+      <name delimiter-precedes-last="always" initialize-with=". " sort-separator=" "/>
+      <et-al font-style="italic"/>
+      <label form="short" text-case="capitalize-first" prefix=", "/>
+      <substitute>
+        <names variable="editor"/>
+      </substitute>
+    </names>
+  </macro>
+  <macro name="access">
+    <choose>
+      <if match="any" type="webpage post post-weblog article">
+        <group delimiter=" ">
+          <group delimiter=": ">
+            <text term="available at" text-case="capitalize-first"/>
+            <text variable="URL"/>
+          </group>
+          <group prefix=" [" suffix="]">
+            <text term="accessed" text-case="capitalize-first" suffix=" "/>
+            <date variable="accessed">
+              <date-part name="day" suffix=" "/>
+              <date-part name="month" suffix=" "/>
+              <date-part name="year"/>
+            </date>
+          </group>
+        </group>
+      </if>
+      <else-if type="article-journal" match="any">
+        <choose>
+          <if variable="volume" match="none">
+            <text variable="DOI" prefix="https://doi.org/"/>
+          </if>
+        </choose>
+      </else-if>
+      <else-if type="article" match="any">
+        <group delimiter=" ">
+          <group delimiter=": ">
+            <text term="available at" text-case="capitalize-first"/>
+            <text variable="URL"/>
+          </group>
+          <group prefix="(" suffix=")">
+            <text term="accessed" suffix=" "/>
+            <date variable="accessed">
+              <date-part name="day" suffix=" "/>
+              <date-part name="month" suffix=" "/>
+              <date-part name="year"/>
+            </date>
+          </group>
+        </group>
+      </else-if>
+      <else-if type="dataset software" match="any">
+        <group delimiter=". ">
+          <text variable="DOI" prefix="https://doi.org/"/>
+          <date variable="issued" prefix="Deposited ">
+            <date-part name="day" suffix=" "/>
+            <date-part name="month" suffix=" "/>
+            <date-part name="year"/>
+          </date>
+        </group>
+      </else-if>
+    </choose>
+  </macro>
+  <macro name="title">
+    <choose>
+      <if type="book">
+        <text variable="title" font-style="italic"/>
+      </if>
+      <else-if type="chapter report thesis" match="any">
+        <text variable="title" quotes="true"/>
+      </else-if>
+      <else>
+        <text variable="title"/>
+      </else>
+    </choose>
+  </macro>
+  <macro name="publisher">
+    <text variable="publisher"/>
+  </macro>
+  <macro name="edition">
+    <choose>
+      <if is-numeric="edition">
+        <group delimiter=" ">
+          <number variable="edition" form="ordinal"/>
+          <text term="edition" form="short" text-case="capitalize-first"/>
+        </group>
+      </if>
+      <else>
+        <text variable="edition"/>
+      </else>
+    </choose>
+  </macro>
+  <macro name="year-date">
+    <date variable="issued">
+      <date-part name="year"/>
+    </date>
+  </macro>
+  <citation collapse="citation-number">
+    <sort>
+      <key variable="citation-number"/>
+    </sort>
+    <layout prefix="(" suffix=")" delimiter=", ">
+      <text variable="citation-number"/>
+    </layout>
+  </citation>
+  <bibliography second-field-align="flush" et-al-min="6" et-al-use-first="1" delimiter-precedes-et-al="always">
+    <layout suffix=".">
+      <text variable="citation-number" suffix=". "/>
+      <group delimiter=", " suffix=".">
+        <text macro="author"/>
+        <choose>
+          <if type="bill book graphic legal_case legislation motion_picture report song" match="any">
+            <group delimiter=" ">
+              <group delimiter=", ">
+                <text macro="title"/>
+                <text macro="editor"/>
+                <text macro="edition"/>
+              </group>
+              <group delimiter=", " prefix="(" suffix=")">
+                <text macro="publisher"/>
+                <text macro="year-date"/>
+              </group>
+            </group>
+          </if>
+          <else-if type="chapter paper-conference" match="any">
+            <group delimiter=" ">
+              <text macro="title"/>
+              <text term="in"/>
+              <group delimiter=", ">
+                <text variable="container-title" text-case="title" font-style="italic"/>
+                <text variable="collection-title" prefix=" " suffix="."/>
+                <text macro="edition"/>
+                <group delimiter=" ">
+                  <text macro="editor"/>
+                  <group delimiter=", " prefix="(" suffix=")">
+                    <text macro="publisher"/>
+                    <text macro="year-date"/>
+                  </group>
+                </group>
+                <group>
+                  <label suffix=" " variable="page" form="short"/>
+                  <text variable="page"/>
+                </group>
+              </group>
+            </group>
+          </else-if>
+          <else-if type="thesis" match="any">
+            <group delimiter=" ">
+              <group delimiter=",  " suffix=".">
+                <text macro="title"/>
+                <text variable="publisher"/>
+                <text variable="publisher-place"/>
+              </group>
+              <text macro="year-date" prefix="(" suffix=")"/>
+            </group>
+          </else-if>
+          <else-if type="article" match="any">
+            <group delimiter=". " suffix=".">
+              <text macro="title"/>
+              <group delimiter=" ">
+                <text variable="container-title" form="short" font-style="italic"/>
+                <text term="preprint" text-case="capitalize-first" prefix="[" suffix="]"/>
+                <text macro="year-date" prefix="(" suffix=")"/>
+              </group>
+            </group>
+          </else-if>
+          <else-if type="dataset" match="any">
+            <group delimiter=". ">
+              <text variable="title"/>
+              <text variable="publisher"/>
+            </group>
+          </else-if>
+          <else>
+            <group delimiter=". ">
+              <text macro="title"/>
+              <group delimiter=" ">
+                <text variable="container-title" form="short" font-style="italic"/>
+                <group delimiter=", ">
+                  <text variable="volume" font-weight="bold"/>
+                  <text variable="page"/>
+                </group>
+                <text macro="year-date" prefix="(" suffix=")"/>
+              </group>
+            </group>
+          </else>
+        </choose>
+      </group>
+      <text prefix=" " macro="access"/>
+    </layout>
+  </bibliography>
+</style>