<!ELEMENT PMT_SOURCE_RECORD (clientNumber, paymentService?, description?, bankAccountName?, bankAccountNumber, bankRoutingNumber, customerVaultID?)> <!ELEMENT clientNumber (#PCDATA)> <!ELEMENT paymentService (#PCDATA)> <!ELEMENT description (#PCDATA)> <!ELEMENT bankAccountName (#PCDATA)> <!ELEMENT bankAccountNumber (#PCDATA)> <!ELEMENT bankRoutingNumber (#PCDATA)> <!ELEMENT customerVaultID (#PCDATA)>