Veterinarians screen racehorses regularly for evidence of performance enhancers, aiming to use sample collection methods that yield accurate and consistent results. Blood-draw supplies vary among ...

Studies have examined the associations between cancers and circulating 25-hydroxyvitamin D [25(OH) D], but little is known about the impact of different laboratory practices on 25(OH) D concentrations ...

Investigators have developed a new risk score that assesses a person's risk for developing ALS, as well as for survival after diagnosis, using a blood sample based on exposure to toxins in the ...