doi

content/organ_bat.html

@@ -77,7 +77,8 @@ Inactive BAT can secrete myostatin which inhibits muscle function
 <p>In adults, <a href="organ_wat.html">white adipose tissue</a> (WAT) can contain thermogenic 
 "brite" or "beige" adipocytes (BeAT) with UCP1 expression. In resting state BeATs resemble
 white adipocytes, but when activated transdifferentiate themselves to resemble brown adipocytes
-(Virtanen, 2016). Browning of white adipocytes is induced for example by FGF21, which is released
+(<a href="https://doi.org/10.1016/B978-0-12-384947-2.00007-6">Virtanen, 2016</a>). 
+Browning of white adipocytes is induced for example by FGF21, which is released
 from brown adipocytes in response to cold. Several other inducers of browning have been suggested,
 including prostaglandins, BMP7, BMP8b, and ANP/BNPs 
 (<a href="https://doi.org/10.1016/B978-0-12-384947-2.00007-6">Virtanen, 2016</a>).