Please join the Pharmaceutical Society of Japan (PSJ) (https://www.pharm.or.jp/kaiin/nyukai.html). Division of structure-activity relationship (DSAR) of the Pharmaceutical Society of Japan organizes Structure Activity Relationship Symposium and Structure Activity Forum, and publishes SAR News (April ad October) to promote structure-activity relationship research in Japan. DSAR contributes to drug discovery research in medicine, agriculture and pharmacology. Please make a registration as a DSAR member. Members can automatically receive newsletter (electronic version) and other various business guidance. DSAR member can publish the study at SAR symposium. Please inform us name, affiliation, contact address, and e-mail using e-mail. If you are a student, please indicate the school year. The membership fee is unnecessary. However, you must be a member of PSJ, if you wish to be awarded (Excellence Presentation Award or Excellence Poster Award.