id	domain	url
ajlm-28	dx.doi.org	http://dx.doi.org/10.4102
ajlm-28	dx.doi.org	http://dx.doi.org/10.1016/s0140-6736(86)90837-8
ajlm-28	dx.doi.org	http://dx.doi.org/10.1136/bmj.294.6582.1263