-->http://edcenter.med.cornell.edu/Pathophysiology/Causes/STDs/STD_06.html

-->http://www.herpes-coldsores.com/std/syphilis/pictures.htm

--> www.lucidcentral.com/

--> www.smackbomb.com/weirdpictures/

--> medlib.med.utah.edu/kw/

--> s99.middlebury.edu/BI330A/projects/

--> www.pfizer.co.jp/contents/150/images/needle.gif

--> http://www.martab.com/art/syringe.jpg

-->http://www.county.allegheny.pa.us/achd/std/syphilis.asp