SN4 ""

No	Pattern	Freq
31	health worker	170
32	health centre	166
33	health department	149
34	health workers	145
35	health visitor	135
36	health department	126
37	health [noun prp]	123
38	health professional	122
39	health council	119
40	health professionals	117
41	health organisation	116
42	health officers	116
43	health hazard	111
44	health risk	110
45	health organisation	110
46	health organization	106
47	health officer	104
48	health organization	104
49	health status	97
50	health status	97
51	health warning	91
52	health policy	84
53	health council	83
54	health centres	75
55	health study	73
56	health food	72
57	health boards	71
58	health risks	70
59	health need	69
60	health club	68