[1] STATE LAB N RHINE WESTPHALIA FOOD PHARMACEUT ENVI, W-4400 MUNSTER, GERMANY
[2] FORSCH GELLSCH MBH, ERGO, W-2000 HAMBURG, GERMANY
[3] HLTH & WELF CANADA, DIV FOOD RES, OTTAWA K1A 0L2, ON, CANADA
[4] COLL MED, NATL COMM STUDY CONSEQUENCES CHEM USED WARTIME 10, HANOI, VIETNAM
[5] OBSTET HOSP, HANOI, VIETNAM
[6] OBSTET HOSP, HO CHI MINH CITY, VIETNAM
[7] CHO RAY HOSP, HO CHI MINH CITY, VIETNAM
[8] BAIKALSK ECOL TOXICOL INST, BAIKALSK 665914, RUSSIA
[9] HARVARD UNIV, MASSACHUSETTS GEN HOSP, SCH MED, BOSTON, MA 02114 USA
[10] MAFF, FOOD SCI LAB, NORWICH NR4 7UQ, ENGLAND
[11] COLL MED DENT & PHARM, PHNOM PENH, CAMBODIA
[12] MINIST HLTH, PHNOM PENH, CAMBODIA