Manuscripts must not be under consideration elsewhere. All submissions are reviewed by experts in the field, who are asked to return the manuscripts with their comments within 3 weeks. Manuscript Preparation Manuscripts must be typewritten, double-spaced, with consecutively numbered pages. The suggested length is approximately 3500 words. Before submitting the completed work, authors should review manuscripts for clarity, grammar, and accuracy.
All submissions are subject to editing.
References Manuscripts should include appropriate references to the literature. These should be cited in the text in numerically consecutive order and listed in the same order in a reference list at the end. If tables or figures have been previously published, include a complete reference to the original publication and a copy of the permission to reprint. Each table should be typed on a separate sheet and numbered consecutively as cited in the text. Tables should not contain horizontal or vertical rules within the tabulated information.