In the late 20th century, what was happening was, mostly the clinical trials that were undertaken were by the research institute and also by the pharmaceutical industry, which were limited in nature
विसाव्या शतकाच्या शेवटी असे होते की क्लिनिकल ट्रायल्स (Clinical trials) मुख्यत्वेकरून संशोधन संस्था आणि फार्मास्युटिकल इंडस्ट्रीज (Pharmaceutical industries) करत होत्या, ज्या की मर्यादित स्वरुपात होत्या.