TY - JOUR T1 - Seasonal variations of immunochemical and gaiac faecal occult blood tests JF - Gut JO - Gut SP - 423 LP - 424 DO - 10.1136/gut.2010.224535 VL - 60 IS - 3 AU - Lydia Guittet AU - Elodie Guillaume AU - Véronique Bouvier AU - Guy Launoy Y1 - 2011/03/01 UR - http://gut.bmj.com/content/60/3/423.3.abstract N2 - In their article recently published in Gut, Grazzini et al observed that accuracy of the OC Sensor immunochemical faecal occult blood test (FOBT) depends on the season.1 They found a decrease in positivity rates in the summer compared with winter (table 1). This decrease, probably related to degradation … ER -