source	studies
Liver	15
Blood	13
Feces	10
Cultured cells	10
Muscle	9
Brain	6
Bacterial cells	5
Embryonic cells	5
Cecum	5
Lung	4
Intestine	3
Heart	2
Jejunum	2
Kidney	2
Prostate	1
Quadriceps	1
Rectum	1
Saliva	1
Scalp	1
Seeds	1
Skin	1
Small intestine	1
Subcutaneous fat	1
T-cells	1
Thyroid	1
Urine	1
Ventricles	1
Adipose tissue	1
Worms	1
BAT	1