How to fix "A string literal was expected,no opening quote character found" error?

[Prince Silva]

I am newbie to xml.Cant understand following error.Kindly please point me the errors in my code.

ERROR:
A string literal was expected, but no opening quote character was found. Error processing resource 'file:///C:/Users/user/D...

<Patient Indicator=“N">
-------------------^

<?xml version="1.0" encoding="utf-8"?>
<Patients>
  <Patient Indicator=“N">
    <Guid1>     </Guid1>
    <date1>     </date1>
    <docname>   </docname>
    <patname>   </patname>
    <pataddr>   </pataddr>
    <sym1>      </sym1>
    <sym2>      </sym2>
    <sym3>      </sym3>
    <sym4>      </sym4>
    <sym5>      </sym5>
    <disease>   </disease>                   		   
  </Patient>
</Patients>

[Dormilich]

“ is a typographical quotation mark, not the double quotation mark (") required to quote attribute values.