RT Journal Article SR Electronic T1 The confused Milky Way JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 369 OP 369 DO 10.1136/jech.55.6.369 VO 55 IS 6 A1 MONCADA, ROCÍO ORTIZ A1 ALVAREZ-DARDET, CARLOS YR 2001 UL http://jech.bmj.com/content/55/6/369.1.abstract AB