Median dose LD50 median dose English LD50 English lethal dose lethal dose median concentration LD median dose English median dose LD50 LD20 LD lethal dose median dose English lethal dose median dose median dose median dose English English lethal dose English median dose lethal dose lethal dose lethal dose Lethal Dose 50 median dose LD50 median dose English LD (lethal dosage) ప్రాణాంతక మోతాదు lowest published lowest published lethal dose LD50 Median dose median dose median dose median dose Lethal dose median dose English English human body weight median dose English English lethal dose median dose English median dose English English