drug growth Ctrl 43.24468 Ctrl 36.58503 Ctrl 52.49527 Drg1 56.65632 Drg1 67.13815 Drg1 69.33302 Drg2 80.95173 Drg2 50.78843 Drg2 61.75402 KO 64.25609 KO 51.50366 KO 52.29331