TY  - RPRT
TI  - Advice for travellers.
AU  - P M Jeffrey
AU  - I S Symington
PY  - 1988
DO  - 10.1136/bmj.297.6643.288-a
UR  - https://pubmed.ncbi.nlm.nih.gov/3416150/
ID  - 3416150
ER  -