source	studies
Blood	77
Cultured cells	22
Feces	11
Liver	10
Urine	9
Brain	8
Bacterial cells	7
Lung	7
Muscle	6
Macrophages	5
Tumor cells	4
Cecum	4
Heart	3
Intestine	3
Cyst fluid	2
Plant	2
Kidney	2
Cerebrospinal fluid	2
Amniotic fluid	2
Neutrophils	1
Ovarian cancer cells	1
Pancreas	1
Placenta	1
Plant roots	1
Saliva	1
Scalp	1
Skin	1
Soil	1
Spleen	1
Sputum	1