We are recruiting active and retired sickle cell trait football players who are at least 18 years of age for a study on the correlation between symptomology during training and different genetic modifiers on the sickle cell gene. We are pleased to offer a $10 gift certificate upon completion of a survey and submission of a buccal swab. We supply the buccal swab kit and we pay for all postage. Contact: firstname.lastname@example.org. NO MORE SICKLE CELL TRAIT FOOTBALL DEATHS!
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