The manuscript should not exceed 1500 words. Three copies of text and illustrations should be submitted. Authors should keep one copy for themselves. Submission implies that the material has not been published in or submitted to any other journal. Previous oral or poster session presentations should be footnoted.
All submissions are subject to review by two or more independent reviewers.
Authors may suggest reviewers. All manuscripts are subject to editing. Copyright of the manuscript is transferred to the publisher upon acceptance. A separate page, with a brief but informative title that avoids the use of symbols and abbreviations. A list of the authors and address of the laboratory, including zip code, where the research was done should be supplied.