You may also starve it by preventing new blood from reaching it from other parts of the body, thereby preventing new "supplies" from expanding the tumor.
1	You	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	4	nsubj	4:nsubj	_
2	may	may	AUX	MD	VerbForm=Fin	4	aux	4:aux	_
3	also	also	ADV	RB	_	4	advmod	4:advmod	_
4	starve	starve	VERB	VB	VerbForm=Inf	0	root	0:root	_
5	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	obj	4:obj	_
6	by	by	SCONJ	IN	_	7	mark	7:mark	_
7	preventing	prevent	VERB	VBG	VerbForm=Ger	4	advcl	4:advcl:by	_
8	new	new	ADJ	JJ	Degree=Pos	9	amod	9:amod	_
9	blood	blood	NOUN	NN	Number=Sing	7	obj	7:obj	_
10	from	from	SCONJ	IN	_	11	mark	11:mark	_
11	reaching	reach	VERB	VBG	VerbForm=Ger	7	advcl	7:advcl:from	_
12	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	11	obj	11:obj	_
13	from	from	ADP	IN	_	15	case	15:case	_
14	other	other	ADJ	JJ	Degree=Pos	15	amod	15:amod	_
15	parts	part	NOUN	NNS	Number=Plur	11	obl	11:obl:from	_
16	of	of	ADP	IN	_	18	case	18:case	_
17	the	the	DET	DT	Definite=Def|PronType=Art	18	det	18:det	_
18	body	body	NOUN	NN	Number=Sing	15	nmod	15:nmod:of	SpaceAfter=No
19	,	,	PUNCT	,	_	7	punct	7:punct	_
20	thereby	thereby	ADV	RB	_	21	advmod	21:advmod	_
21	preventing	prevent	VERB	VBG	VerbForm=Ger	7	advcl	7:advcl	_
22	new	new	ADJ	JJ	Degree=Pos	24	amod	24:amod	_
23	"	"	PUNCT	``	_	24	punct	24:punct	SpaceAfter=No
24	supplies	supplies	NOUN	NNS	Number=Plur	21	obj	21:obj	SpaceAfter=No
25	"	"	PUNCT	''	_	24	punct	24:punct	_
26	from	from	SCONJ	IN	_	27	mark	27:mark	_
27	expanding	expand	VERB	VBG	VerbForm=Ger	21	advcl	21:advcl:from	_
28	the	the	DET	DT	Definite=Def|PronType=Art	29	det	29:det	_
29	tumor	tumor	NOUN	NN	Number=Sing	27	obj	27:obj	SpaceAfter=No
30	.	.	PUNCT	.	_	4	punct	4:punct	_
