Creative Commons Attribution (CC-BY) License AgreementDecember 23rd, 2013
FiledDecember 23rd, 2013This License applies only to articles published under the ACS AuthorChoice+12 option using the Creative Commons Attribution (CC-BY) license.
Creative Commons Attribution (CC-BY) License AgreementApril 3rd, 2013
FiledApril 3rd, 2013This License applies only to articles published under the option using the Creative Commons Attribution (CC-BY) license.