2001

Oct 5 - Nov 29 - 34 days
Sep 21 - Sep 30 - 9 days
Sep 7 - Sep 12 - 5 days
Aug 27 - Sep 2 - 6 days
Aug 11 to Aug 21 - 10 days
Jul 13 to Aug 6  - 25 days
June 14 to July 10 - 27 days
Apr 25 to May 23 - 29 days
Mar 10 to - Mar 27 - 18 days
Children`s Hospital Boston, MA.

Feb 18 to Feb 27 - 10 days
Hospital ABC, Mexico, D.F.

2000

Dec 23 20:00 hrs. Dec 30 - 8 days
Dec 01 to Dec 23 13:00hrs. - 23 days
Hospital ABC, Mexico, D.F.

Oct 31  to  Nov 06 - 7 days
Sep 09  to  Sep  29 - 21 days
Children`s Hospital Boston, Ma.

July 15  to  Ago  13 - 30 days
Apr  29  to  May 14 - 16 days
Hospital ABC, Mexico, D.F.

Mar  07  to  Mar 20 - 14 days
Children`s Hospital Denver, Co.

1999

Sep  13  to  Dec 11 - 91 days
July 10  to  Ago 01 - 23 days
Hospital ABC, Mexico, D.F.

June 28  to  July  02 - 5 days
June 22  to  June 26 - 5 days
May 15  to  May 24 - 10 days
Hospital Angeles, Mexico, D.F.