1. Isotope Chemistry; DMPK, AstraZeneca Pharmaceuticals LP; 43183 Mölndal Sweden
2. Isosciences; King of Prussia PA 19406 m USA
3. CNS-Chemistry; AstraZeneca Pharmaceuticals LP; Wilmington DE 19850 USA
4. Isotope Chemistry; DMPK, AstraZeneca Pharmaceuticals LP; Alderley Park UK