def birthdate
      month_data_element = bio_document.at("td.label[text()*='Date of Birth']").
          next_element.first_element_child
      date_month = month_data_element.inner_text.strip rescue ""
      year = month_data_element.next_element.inner_text.strip rescue ""
      Date.parse("#{date_month} #{year}") rescue nil
    end
def birthdate
      month_data_element = bio_document.at("td.label[text()*='Date of Birth']").
          next_element.first_element_child
      date_month = month_data_element.inner_text.strip rescue ""
      year = month_data_element.next_element.inner_text.strip rescue ""
      Date.parse("#{date_month} #{year}") rescue nil
    end
Get The Birth Date
@return [Date]