| Financial support from the following |
| institutions is gratefully acknowledged |
| Abbott Laboratories |
| ABEC |
| Amgen Inc. |
| Bayer |
| Bio-Rad |
| Biogen Inc. |
| Bristol Myers Squibb |
| Chiron Corporation |
| Dr. Karl Thomae GmbH |
| E.I. DuPont de Nemours |
| Eli Lilly and Company |
| Genentech, Inc. |
| Immunex Corporation |
| Kirin Brewery Co. Ltd. |
| Life Technologies, Inc. |
| Merck Research Laboratories |
| National Science Foundation |
| New Brunswick Scientific Co. Inc. |
| Novo Nordisk A/S |
| Pfizer Inc. |
| Pharmacia-Upjohn |
| Sankyo Co., Ltd. |
| SmithKline Beecham |