76dc0f3ea238bf75a5b62153f225e04bd4e29f3c
angie
  Tue Nov 5 12:07:48 2019 -0800
label/description tweaks suggested by Lou.  refs #23283

diff --git src/hg/makeDb/trackDb/human/dbSnp153Composite.html src/hg/makeDb/trackDb/human/dbSnp153Composite.html
index 592cd8e..292fae6 100644
--- src/hg/makeDb/trackDb/human/dbSnp153Composite.html
+++ src/hg/makeDb/trackDb/human/dbSnp153Composite.html
@@ -80,31 +80,32 @@
 Variants are colored according to functional effect on genes annotated by dbSNP.
 Protein-altering variants and splice site variants are
 red,
 synonymous codon variants are
 green,
 and non-coding transcript or Untranslated Region (UTR) variants are
 blue.
 </p>
 <p>
 On the track controls page, several variant properties can be included or excluded from
 the item labels:
 rs# identifier assigned by dbSNP,
 reference/alternate alleles,
 major/minor alleles (when available) and
 minor allele frequency (when available).
-Allele frequencies are reported independently by twelve projects:
+Allele frequencies are reported independently by twelve projects
+(some of which may have overlapping sets of samples):
   <ul>
     <li><a href="https://www.internationalgenome.org/" target=_blank>1000Genomes</a>:
       The 1000 Genomes Phase 3 dataset contains data for 2,504 individuals from 26 populations.
     </li>
     <li><a href="https://gnomad.broadinstitute.org/" target=_blank>GnomAD exomes</a>:
       The gnomAD
       <a href="https://macarthurlab.org/2018/10/17/gnomad-v2-1/" target=_blank>v2.1</a>
       exome dataset comprises a total of 16 million SNVs and 1.2 million indels from 125,748 exomes
       in 14 populations.
     </li>
     <li><a href="https://www.nhlbiwgs.org/" target=_blank>TOPMED</a>:
       The TOPMED dataset contains phase 3 data from freeze 5 panel that include over 60,000
       individuals. The approximate ethnic breakdown is European(52%), African (31%),
       Hispanic or Latino (10%), and East Asian (7%) ancestry.
     </li>
@@ -157,42 +158,43 @@
     </li>
   </ul>
 The project from which to take allele frequency data defaults to 1000 Genomes
 but can be set to any of those projects.
 </p>
 <p>
 Using the track controls, variants can be filtered by
 
   <ul>
     <li>minimum minor allele frequency (MAF)
     </li>
     <li>variation class/type (e.g. SNV, insertion, deletion)
     </li>
     <li>functional effect on a gene (e.g. synonymous, frameshift, intron, upstream)
     </li>
-    <li>assorted features and anomalies noted by UCSC during processing of dbSNP's data.
+    <li>assorted features and anomalies noted by UCSC during processing of dbSNP's data
     </li>
   </ul>
 </p>
 
 <a name="ucscNotes">
 <h3>Interesting and anomalous conditions noted by UCSC</h3>
 <p>
 While processing the information downloaded from dbSNP,
 UCSC annotates some properties of interest.
 These are noted on the item details page,
 and may be useful to include or exclude affected variants.
+</p><p>
 Some are purely informational:
 </p>
 <table class="descTbl">
   <tr><th>keyword in data file (dbSnp153.bb)</th>
     <th># in hg19</th><th># in hg38</th><th>description</th></tr>
   <tr>
     <td>clinvar</td>
     <td class="number">454656</td>
     <td class="number">453954</td>
     <td>Variant is in ClinVar.</td>
   </tr>
   <tr>
     <td>clinvarBenign</td>
     <td class="number">143844</td>
     <td class="number">143696</td>