PT - JOURNAL ARTICLE AU - Edwards, J H TI - Heterozygote advantage. AID - 10.1136/adc.52.5.343 DP - 1977 May 01 TA - Archives of Disease in Childhood PG - 343--344 VI - 52 IP - 5 4099 - http://adc.bmj.com/content/52/5/343.short 4100 - http://adc.bmj.com/content/52/5/343.full SO - Arch Dis Child1977 May 01; 52