Cryoglobulinemia  
   Types I, II, II, treatment and information, cryofiltration apheresis.
   http://dynamics.org/~altenber/cryo/

Cells of the Blood  
   Click on any of the cells to identify the cell type and get further information.
   http://www-micro.msb.le.ac.uk/MBChB/bloodmap/Blood.html

BloodGivers  
   FAQs about blood donation, examples of how it is used, basic facts and blood types and compatibility.
   http://www.bloodgivers.com

MediScene  
   Provides medical information, questions and answers about blood, lymph nodes and clotting.
   http://www.mediscene.com/patient/topic.php3?display=yes&topic=heme

BloodBook  
   Provides information about blood, facts, transfusion, news, safety, diseases, disorders, autologous blood collection and storage.
   http://www.bloodbook.com

HealtHub  
   A brief introduction of polycythemia, followed by links to overviews, research articles, diagnosis and treatment methods.
   http://www.healthubs.com/polycythemia/

Pediatric Oncall- Routine Blood Test  
   Brief description of the complete blood count.
   http://www.pediatriconcall.com/forpatients/Procedures/routine_blood_testpat.asp

Blood Types - DrGreene.com  
   Clear patient-oriented information on the basics of different blood types.
   http://www.drgreene.com/21_59.html

XLP: X-Linked Lymphoproliferative Disorder  
   Explains this rare condition which affects only males. Includes personal accounts and offers contact information for sufferers.
   http://www.xlp.ca/

XLP or Ducans Disease Resource Site  
   X-linked Lymphoproliferative Syndrome (XLP) or Duncans syndrome. A family site with resources and news for 4 sons who suffer from this disease.
   http://www.teamhartley.co.uk