id	enter	end	time	age	drug	censor
1	15may90	14oct90	5	46	0	1
2	19sep89	20mar90	6	35	1	0
3	21apr91	20dec91	8	30	1	1
4	03jan91	04apr91	3	30	1	1
5	18sep89	19jul91	22	36	0	1
6	18mar91	17apr91	1	32	1	0
7	11nov89	11jun90	7	36	1	1
8	25nov89	25aug90	9	31	1	1
9	11feb91	13may91	3	48	0	1
10	11aug89	11aug90	12	47	0	1
11	11apr90	10jun90	2	28	1	0
12	11may91	10may92	12	34	0	1
13	17jan89	16feb89	1	44	1	1
14	16feb91	17may92	15	32	1	1
15	09apr91	06feb94	34	36	0	1
16	09mar91	08apr91	1	36	0	1
17	03aug90	02dec90	4	54	0	1
18	10jun90	08jan92	19	35	0	0
19	12jun91	11sep91	3	44	1	0
20	07jan91	08mar91	2	38	0	1
21	29aug89	28oct89	2	40	0	0
22	29may89	27nov89	6	34	1	1
23	16nov90	14nov95	60	25	0	0
24	09may90	08apr91	11	32	0	1
25	10sep91	09nov91	2	42	1	0
26	26dec91	26may92	5	47	0	1
27	29may91	27sep91	4	30	0	0
28	01may90	31may90	1	47	1	1
29	24mar91	22apr92	13	41	0	1
30	18jul89	17oct89	3	40	1	1
31	16sep90	15nov90	2	43	0	1
32	22jun89	22jul89	1	41	0	1
33	27apr90	25oct92	30	30	0	1
34	16may90	14dec90	7	37	0	1
35	19feb89	20jun89	4	42	1	1
36	17feb90	18oct90	8	31	1	1
37	06aug91	05jan92	5	39	1	1
38	10aug89	10jun90	10	32	0	1
39	27dec90	25feb91	2	51	0	1
40	26apr89	24jan90	9	36	0	1
41	04dec90	03dec93	36	43	0	1
42	28apr91	28jul91	3	39	0	1
43	09jul91	07apr92	9	33	0	1
44	31dec89	01apr90	3	45	1	1
45	20dec89	18nov92	35	33	0	1
46	22jun91	20feb92	8	28	0	1
47	11apr90	11mar91	11	31	0	1
48	22may90	19jan95	56	20	1	0
49	11nov91	10jan92	2	44	0	0
50	18jan91	19apr91	3	39	1	1
51	11nov89	10feb91	15	33	0	1
52	01oct90	31oct90	1	31	0	1
53	20mar90	18jan91	10	33	0	1
54	30jul90	29aug90	1	50	1	1
55	17jul89	14feb90	7	36	1	1
56	10nov90	09feb91	3	30	1	1
57	05mar89	04jun89	3	42	1	1
58	02mar91	01may91	2	32	1	1
59	11sep89	11may92	32	34	0	1
60	12sep89	12dec89	3	38	1	1
61	08apr90	06feb91	10	33	0	0
62	20apr89	20mar90	11	39	1	1
63	31jan91	02may91	3	39	1	1
64	15sep89	15apr90	7	33	1	1
65	07dec91	07may92	5	34	1	1
66	04mar90	01oct92	31	34	0	1
67	20apr89	19sep89	5	46	1	1
68	16jun89	15apr94	58	22	0	1
69	01oct90	31oct90	1	44	1	1
70	01feb91	03may91	3	37	0	0
71	13may89	10dec92	43	25	0	1
72	09aug90	08sep90	1	38	0	1
73	18dec91	17jun92	6	32	0	1
74	23aug90	21jan95	53	34	0	1
75	19jan91	19mar92	14	29	0	1
76	26aug91	25dec91	4	36	1	1
77	16may91	13nov95	54	21	0	1
78	20mar89	19apr89	1	26	1	1
79	05oct91	04nov91	1	32	1	1
80	21may91	19jan92	8	42	0	1
81	10jun91	09nov91	5	40	1	1
82	31aug89	30sep89	1	37	1	1
83	28dec91	27jan92	1	47	0	1
84	29sep90	28nov90	2	32	1	1
85	20nov91	19jun92	7	41	1	0
86	02jul89	01aug89	1	46	1	0
87	11oct91	10aug92	10	26	1	1
88	11oct90	10oct92	24	30	0	0
89	05dec90	05jul91	7	32	1	1
90	08sep89	08sep90	12	31	1	0
91	10apr90	09aug90	4	35	0	1
92	11dec90	09sep95	57	36	0	1
93	15dec90	14jan91	1	41	1	1
94	13jan89	13jan90	12	36	1	0
95	22aug91	21mar92	7	35	1	1
96	02aug91	01sep91	1	34	1	1
97	22may91	21oct91	5	28	0	1
98	02apr90	01apr95	60	29	0	0
99	01may91	30jun91	2	35	1	0
100	11may89	10jun89	1	34	1	1
