どこにでもあるが

http://slideplayer.com/slide/10473160/35/images/13/Fig.7..jpg

https://www.researchgate.net/profile/Fatih_Akbulut2/publication/269112769/figure/fig1/AS:346503479611393@1459624275549/Figure-1-a-Necrotic-fields-before-the-emergent-debridement-and-situation-after.jpg

http://www.sjkdt.org/articles/2011/22/2/images/SaudiJKidneyDisTranspl_2011_22_2_359_77646_u4.jpg

https://www.researchgate.net/profile/Anne-Francoise_Spinoit/publication/260397223/figure/fig1/AS:213913477095426@1428012355547/Status-1-week-after-Blandy-perineostomy-complicated-by-postoperative-bleeding-and-wound.png

http://medresearch.in/index.php/IJMRR/article/viewFile/957/2224/5103