1. From U. S. Naval Preventive Medicine Unit No. 6, Pearl Harbor, Oahu, Hawaii
2. Univ. of Washington, Seattle, Wash
3. U. S. Navy Research Unit No. 1, Univ. of California, Berkeley, Calif
4. U. S. Navy Preventive Medicine Unit, Da Nang, Vietnam
5. U. S. Naval Station, Subic Bay, R.P.