Lack of effect of nitrogen dioxide exposure on heart rate variability in patients with stable coronary heart disease and impaired left ventricular systolic function

Alison Scaife; Justin Barclay; Graham S Hillis; Janaki Srinivasan; David W Macdonald; John A S Ross; Jon G Ayres

doi:10.1136/oemed-2011-100126

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Original article

Lack of effect of nitrogen dioxide exposure on heart rate variability in patients with stable coronary heart disease and impaired left ventricular systolic function

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	Abstract	Full	Pdf
Jun 2012	213	6	24
Jul 2012	334	25	16
Aug 2012	213	52	20
Sep 2012	104	29	10
Oct 2012	84	12	6
Nov 2012	84	9	3
Dec 2012	54	12	8
Jan 2013	162	5	9
Feb 2013	56	4	2
Mar 2013	52	4	5
Apr 2013	44	7	4
May 2013	42	3	3
Jun 2013	21	3	4
Jul 2013	25	3	3
Aug 2013	17	3	0
Sep 2013	13	2	1
Oct 2013	33	2	3
Nov 2013	30	1	2
Dec 2013	16	1	4
Jan 2014	16	5	4
Feb 2014	30	2	2
Mar 2014	22	3	0
Apr 2014	22	1	2
May 2014	22	1	2
Jun 2014	12	0	0
Jul 2014	22	1	0
Aug 2014	7	1	2
Sep 2014	12	1	0
Oct 2014	30	1	3
Nov 2014	14	1	2
Dec 2014	11	2	2
Jan 2015	27	1	1
Feb 2015	9	1	1
Mar 2015	14	2	2
Apr 2015	11	0	0
May 2015	12	1	0
Jun 2015	22	0	2
Jul 2015	3	1	1
Aug 2015	5	0	1
Sep 2015	17	1	3
Oct 2015	6	1	2
Nov 2015	9	1	0
Dec 2015	18	1	5
Jan 2016	16	4	4
Feb 2016	12	1	0
Mar 2016	14	3	3
Apr 2016	7	2	2
May 2016	19	1	2
Jun 2016	14	0	0
Jul 2016	6	0	0
Aug 2016	14	0	3
Sep 2016	14	1	1
Oct 2016	13	0	0
Nov 2016	7	1	1
Dec 2016	18	2	2
Jan 2017	13	2	2
Feb 2017	10	1	1
Mar 2017	11	1	1
Apr 2017	10	3	1
May 2017	16	3	1
Jun 2017	14	0	0
Jul 2017	14	0	0
Aug 2017	37	1	2
Sep 2017	19	1	1
Oct 2017	49	1	1
Nov 2017	70	1	1
Dec 2017	90	1	3
Jan 2018	62	0	1
Feb 2018	43	0	1
Mar 2018	66	2	0
Apr 2018	41	4	1
May 2018	44	0	0
Jun 2018	38	1	1
Jul 2018	25	0	0
Aug 2018	19	3	3
Sep 2018	23	0	0
Oct 2018	93	2	0
Nov 2018	47	1	0
Dec 2018	51	0	0
Jan 2019	54	1	0
Feb 2019	48	1	1
Mar 2019	67	0	0
Apr 2019	45	2	2
May 2019	43	1	2
Jun 2019	49	3	4
Jul 2019	48	2	0
Aug 2019	42	5	3
Sep 2019	42	3	3
Oct 2019	34	3	1
Nov 2019	46	1	0
Dec 2019	22	0	0
Jan 2020	27	1	0
Feb 2020	15	1	1
Mar 2020	24	0	1
Apr 2020	46	4	9
May 2020	13	1	1
Jun 2020	18	1	1
Jul 2020	34	0	2
Aug 2020	12	1	0
Sep 2020	44	2	0
Oct 2020	25	6	6
Nov 2020	23	3	1
Dec 2020	25	3	1
Jan 2021	29	1	0
Feb 2021	25	0	0
Mar 2021	51	3	3
Apr 2021	102	0	0
May 2021	13	0	0
Jun 2021	1	0	2
Jul 2021	4	4	1
Aug 2021	4	4	0
Oct 2021	32	0	0
Nov 2021	43	2	0
Dec 2021	49	6	1
Jan 2022	80	4	1
Feb 2022	46	3	1
Mar 2022	40	0	0
Apr 2022	34	0	0
May 2022	61	3	0
Jun 2022	50	3	0
Jul 2022	44	0	0
Aug 2022	51	2	0
Sep 2022	49	2	0
Oct 2022	55	1	1
Nov 2022	38	1	0
Dec 2022	85	0	0
Jan 2023	50	0	1
Feb 2023	43	2	1
Mar 2023	19	1	0
Apr 2023	35	6	0
May 2023	33	1	0
Jun 2023	27	1	0
Jul 2023	25	0	0
Aug 2023	29	3	1
Sep 2023	21	1	0
Oct 2023	47	5	0
Nov 2023	24	0	0
Dec 2023	85	2	1
Jan 2024	89	3	2
Feb 2024	24	2	3
Mar 2024	38	2	1
Total	5450	368	262

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