[Basta-users] 0 for dates?

[Cliff Cunningham]

Dear Fernando,
	I thought we had to put "b1" or "b2" if we didn't know the birthdate.  Should we put "0" for those individuals where this is not known?
	
	All the best!

   	Cliff Cunningham


        Professor
	Biology Department
    	Duke University
        130 Science Drive
	Durham NC 27708
	Phone 919-660-7356

http://www.biology.duke.edu/cunningham




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