Please be sure to include your e-mail address and your fax number. Please do not transmit electronic data to the publisher until your manuscript has been reviewed and accepted for publication. Please follow the instructions below. Winword 6 and Word for Macintosh. For details see Electronic submission of final version.
All manuscripts are subject to copy editing.
Each paper must be preceded by an abstract presenting the most important results and conclusions. 1 to 5 key words should be supplied after the Abstract for indexing purposes. Essential footnotes to the text should be numbered consecutively and placed at the bottom of the page to which they refer. The Introduction should state the purpose of the investigation and give a short review of the pertinent literature. Materials and methods.