Relationship between the lead concentration in hair and occupational exposure.

af Niculescu, T, Dumitru, R, Botha, V, Alexandrescu, R, Manolescu, N
Udgivet 1983

Day of week of procedure and 30 day mortality for elective surgery: retrospective analysis of hospital episode statistics

af Aylin, P, Alexandrescu, R, Jen, M H, Mayer, E K, Bottle, A
Udgivet 2013