Reader Comments

Post a new comment on this article

Publisher's Note: Error in Methods

Posted by PLOS_ONE_Group on 24 Jun 2011 at 22:59 GMT


The second-to-last sentence under the subheading "Human blood plasma samples and collection procedure" in the Methods section should read: “Blood samples collected in EDTA tubes were first centrifuged at 2,800 rpm (1,054g) for 15 min at 4 °C, and plasma (upper phase) was transferred to another EDTA tube and centrifuged at 3,200 rpm (1,376g) for 15 min at 4 °C to remove any remaining cellular material.”

No competing interests declared.