Molecular biologists and biochemists these days are focusing an increasing share of their investigations on the activities of a class of small peptide messenger molecules called cytokines.

The following companies provide a broad array of cytokines and related products for use in biological research laboratories. For more information, please use the Reader Service Card inserted in this issue.

Accurate Chemical & Scientific Corp. Westbury, N.Y.
circle No. 049 on Reader Service Card

AMAC/Immunotech Inc. Westbrook, Maine
circle No. 050 on Reader Service Card

Amersham Corp. Arlington Heights, Ill.
circle No. 051 on Reader Service Card

BACHEM Bioscience Inc. King of Prussia, Pa.
circle No. 052 on Reader Service Card

Becton Dickinson/ Falcon Labware Franklin Lakes, N.J.
circle No. 053 on Reader Service Card

BoehringerMannheim Biochemicals Inc. Indianapolis
circle No. 054 on Reader Service Card

Calbiochem Novabiochem Corp. San Diego
circle No. 055 on Reader Service Card

Chemicon International Inc. Temecula,...

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