Large Scientific Meetings And Organisations

General

American Chemical Society (ACS)
Society For Clinical Trials (SCT)
European Association Clinical Pharmacology and Therapeutics (EACPT)

A - Alimentary Tract & Metabolism

B - Blood & Blood Forming Organs

• American Society of Hematology (ASH)

C - Cardiovascular System

• American Heart Association (AHA)
• European Society of Cardiology (ESC)

D - Dermatology

G - Genitourinary system and Sex Hormones

• American Urological Association (AUA)
• American Society Nephrology (ASN)

H - Systemic Hormonal Preparations

• American Association of Clinical Endocrinologists (AACE)
• The Endocrine Society
• Society for Endocrinology

J - Anti-infectives

• American Society Tropical Medicine & Hygiene (ASTMH) 
• Infectious Disease Society of America (IDSA)
• Interscience Conference Antimicrobial Agents & Chemotherapy (ICAAC)

L - Anti-neoplastics and Immunomodulatory Agents

• American Society of Clinical Oncology (ASCO)
• The Clinical Immunology Society
• European Society Medical Oncology (ESMO)
• American Association of Cancer Research (AACR)
• European Organization for Research & Treatment of Cancer (EORTC)

M - Musculoskeletal System

N -  Nervous System

• American Pain Society
• American Clinical Neurophysiology Society
• American Society of Clinical Psychopharmacology (ASCP)

P - Antiparasitic Agents

R - Respiratory System

• American Thoracic Society (ATS)

S - Sensory Organs

• American Academy of Opthamology (AAO)