The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader).

If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs.

Alternatively, you can download the PDF file directly to your computer, from where it can be opened using a PDF reader. To download the PDF, click the Download link above.

Fullscreen Fullscreen Off

Copyright © 2012 Ione T. Damasco and Dracine Hodges, Attribution-NonCommercial (http://creativecommons.org/licenses/by-nc-sa/3.0/) CC BY-NC


Article Views (By Year/Month)

2026
January: 4
2025
January: 12
February: 27
March: 14
April: 18
May: 19
June: 15
July: 12
August: 18
September: 16
October: 23
November: 32
December: 34
2024
January: 8
February: 6
March: 12
April: 12
May: 2
June: 5
July: 2
August: 3
September: 16
October: 5
November: 12
December: 14
2023
January: 5
February: 8
March: 46
April: 11
May: 7
June: 10
July: 2
August: 6
September: 0
October: 8
November: 17
December: 6
2022
January: 6
February: 8
March: 24
April: 18
May: 11
June: 8
July: 6
August: 6
September: 4
October: 4
November: 40
December: 29
2021
January: 15
February: 12
March: 31
April: 14
May: 11
June: 12
July: 15
August: 8
September: 12
October: 30
November: 5
December: 11
2020
January: 4
February: 5
March: 27
April: 13
May: 12
June: 12
July: 30
August: 7
September: 7
October: 10
November: 11
December: 7
2019
January: 3
February: 18
March: 6
April: 7
May: 2
June: 8
July: 9
August: 4
September: 8
October: 3
November: 42
December: 1
2018
January: 2
February: 3
March: 7
April: 10
May: 9
June: 13
July: 7
August: 2
September: 4
October: 5
November: 4
December: 4
2017
April: 0
May: 58
June: 5
July: 4
August: 6
September: 8
October: 5
November: 12
December: 9