| |
1975 |
WORLD CONGRESS, HONOR GUEST |
| MAY |
1975 |
LECTURE, HADASSA HOSPITAL, JERUSALEM |
| JULY |
1977 |
world congress "CIDESCO", MONTE-CARLO |
| SEPTEMBER |
1977 |
NETHERLAND RED CROSS, ZEIST |
| NOVEMBER |
1978 |
LECTURE, CONGRESS "KOSMETICA", HANNOVER |
| DECEMBER |
1979 |
LECTURE, HÔPITAL BEGIN, PARIS |
| MARCH |
1980 |
LECTURE, LA SALPÊTRIÈRE, PARIS |
| APRIL |
1981 |
INQUIERY OF THE CONSUMMER GUIDE OF THE NETHERLAND :
"GOOD TILL VERY GOOD" |
| MAY |
1982 |
HÔPITAL CANTONNAL, GENEVA |
| NOVEMBER |
1991 |
INTERNATIONAL DAY OF STOMATOLOGIE, MONTE-CARLO |
