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Mitchell, Richard Sheppard; Kumar, Vinay; Abbas, Abul K.; Fausto, Nelson (2007). "30". In Kumar, Vinay; Robbins, Stanley L. (eds.). Robbins basic pathology (8 ed.). Philadelphia, PA: Saunders/Elsevier. ISBN978-1-4160-2973-1. OCLC69672074.{{cite book}}: CS1 maint: date and year (link)
Mitchell, Richard Sheppard; Kumar, Vinay; Abbas, Abul K.; Fausto, Nelson (2007). "30". In Kumar, Vinay; Robbins, Stanley L. (eds.). Robbins basic pathology (8 ed.). Philadelphia, PA: Saunders/Elsevier. ISBN978-1-4160-2973-1. OCLC69672074.{{cite book}}: CS1 maint: date and year (link)