Fradin, Mark S.; Day, John F. (). „Comparative Efficacy of Insect Repellents against Mosquito Bites”. New England Journal of Medicine (în engleză). 347 (1): 13–18. doi:10.1056/nejmoa011699. PMID12097535.
Fradin, Mark S.; Day, John F. (). „Comparative Efficacy of Insect Repellents against Mosquito Bites”. New England Journal of Medicine (în engleză). 347 (1): 13–18. doi:10.1056/nejmoa011699. PMID12097535.