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ejnm-31	doi.org	https://doi.org/10.15218/ejnm.2019.01
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ejnm-31	doi.org	https://doi.org/10.15218/ejnm.2019.01
ejnm-31	doi.org	https://doi.org/10.4236/ape.2017.74038
ejnm-31	docs.google.com	https://docs.google.com/viewer
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ejnm-31	doi.org	https://doi.org/10.2147/ppa.s47497
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ejnm-31	doi.org	https://doi.org/10.1016
ejnm-31	doi.org	https://doi.org/10.1097
ejnm-31	doi.org	https://doi.org/10.1017
ejnm-31	sites.google.com	https://sites.google.com/site/theipaq/
ejnm-31	doi.org	https://doi.org/10.5353/th_b5662548
ejnm-31	doi.org	https://doi.org/10.1016
ejnm-31	doi.org	https://doi.org/10.1136/bjsm.2008.052167
ejnm-31	doi.org	https://doi.org/10.4236/ape.2017.74038
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ejnm-31	www.scopus.com	http://www.scopus.com/inward/record.url?scp=0030987393&partnerid=8yflogxk
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ejnm-31	doi.org	https://doi.org/10.2147/ppa.s47497
ejnm-31	doi.org	https://doi.org/10.2147/ppa.s71373
ejnm-31	doi.org	https://doi.org/10.2147/ppa.s71373
ejnm-31	doi.org	https://doi.org/10.1016/j.annepidem.2008.12.002
ejnm-31	doi.org	https://doi.org/10.1016/j.annepidem.2008.12.002
ejnm-31	sites.google.com	https://sites.google.com/site/theipaq
ejnm-31	doi.org	https://doi.org/10.5353/th_b5662548
ejnm-31	doi.org	https://doi.org/10.1016/j.jsams.2006.05.003
ejnm-31	doi.org	https://doi.org/10.1016/j.jsams.2006.05.003
ejnm-31	doi.org	https://doi.org/10.1136/bjsm.2008.052167
ejnm-31	doi.org	https://doi.org/10.15218/ejnm.2019.01
ejnm-31	doi.org	https://doi.org/10.1001
ejnm-31	doi.org	https://doi.org/10.1097
ejnm-31	doi.org	https://doi.org/10.1053
ejnm-31	ijptm.com	http://ijptm.com/index.php
ejnm-31	doi.org	https://doi.org/10.1371
ejnm-31	doi.org	https://doi.org/10.1038/ncpgasthep0257
ejnm-31	doi.org	https://doi.org/10.4172/21657920.1000458
ejnm-31	doi.org	https://doi.org/10.1159/000323885
ejnm-31	www.ncbi.nlm.nih.gov	https://www.ncbi.nlm.nih.gov
ejnm-31	doi.org	https://doi.org/10.1136/gut.29.11.1511
ejnm-31	doi.org	https://doi.org/10.1136/gut.29.11.1511
ejnm-31	doi.org	https://doi.org/10.1023/a:1018879819301
ejnm-31	doi.org	https://doi.org/10.1023/a:1018879819301
ejnm-31	doi.org	https://doi.org/10.1001/archinte.165.9.1011
ejnm-31	doi.org	https://doi.org/10.1001/archinte.165.9.1011
ejnm-31	doi.org	https://doi.org/10.1097/sla.0b013e31815792c2
ejnm-31	doi.org	https://doi.org/10.1097/sla.0b013e31815792c2
ejnm-31	dx.doi.org	http://dx.doi.org/10.1080/07315724.2004.10719360
ejnm-31	dx.doi.org	http://dx.doi.org/10.1080/07315724.2004.10719360
ejnm-31	dx.doi.org	http://dx.doi.org/10.1080/07315724.2004.10719360
ejnm-31	doi.org	https://doi.org/10.1053/jhep.2002.31551
ejnm-31	doi.org	https://doi.org/10.1053/jhep.2002.31551
ejnm-31	ijptm.com	http://ijptm.com/index.php/ijptm/article/view/270
ejnm-31	ijptm.com	http://ijptm.com/index.php/ijptm/article/view/270
ejnm-31	doi.org	https://doi.org/10.3109/00365529009095495
ejnm-31	doi.org	https://doi.org/10.3109/00365529009095495
ejnm-31	doi.org	https://doi.org/10.1007/bf00145375
ejnm-31	doi.org	https://doi.org/10.1007/bf00145375
ejnm-31	doi.org	https://doi.org/10.1371/journal.pone.0196457
ejnm-31	doi.org	https://doi.org/10.1371/journal.pone.0196457
ejnm-31	doi.org	https://doi.org/10.1038/ncpgasthep0257
ejnm-31	ueaeprints.uea.ac.uk	https://ueaeprints.uea.ac.uk/id/eprint/49763
ejnm-31	ueaeprints.uea.ac.uk	https://ueaeprints.uea.ac.uk/id/eprint/49763
ejnm-31	doi.org	https://doi.org/10.4172/2165-7920.1000458
ejnm-31	doi.org	https://doi.org/10.4172/2165-7920.1000458
ejnm-31	doi.org	https://doi.org/10.1159/000323885
ejnm-31	www.ncbi.nlm.nih.gov	https://www.ncbi.nlm.nih.gov/pubmed/16041099
ejnm-31	www.ncbi.nlm.nih.gov	https://www.ncbi.nlm.nih.gov/pubmed/16041099