BOSTON, Mass. (Nov. 3, 2004)--David Oakes, 37 of S. Thomaston, Maine, gets his vital signs checked by Coast Guard medical personnel at Coast Guard Air Station Cape Cod. Oakes and three other Maine fishermen were suffering from mild hypothermia after their 44-foot fishing vessel sank 32 miles southeast of Nantucket, Mass. today. The four men were rescued by a Coast Guard helicopter crew about 11