SN4 ""

No	Pattern	Freq
1	[noun] who have had [adj] [noun sg]	27
2	[noun pl] who have had [adj] [noun sg]	18
3	[adj] who have had [adj] [noun sg]	8
4	patient who have had [adj] [noun sg]	8
5	[noun sg] who have had [adj] [noun sg]	7
6	[det] who have had [adj] [noun sg]	7
7	patients who have had [adj] [noun sg]	7
8	those who have had [adj] [noun sg]	6
9	those who have had [adj] [noun sg]	6
10	who have [adv] had [adj] [noun sg]	5
11	who have had [art] [adj] [noun sg]	58
12	who have had [art] [adj] [noun sg]	58
13	who have had a [adj] [noun sg]	51
14	who have had a [adj] [noun sg]	40
15	who have had [adj] [adj] [noun sg]	11
16	who have had an [adj] [noun sg]	11
17	who have had [det] [adj] [noun sg]	7
18	who have had [adj] [noun sg] [prep]	26
19	who have had [adj] [noun sg] [prep]	26
20	who have had [adj] [noun sg] of	9
21	who have had [adj] [noun sg] of	9
22	who have had [adj] [noun sg] [noun]	7
23	who have had [adj] [noun sg] for	6
24	who have had [adj] [noun sg] for	6