Timing and Risk Factors for a Positive Fecal Immunochemical Test in Subsequent Screening for Colorectal Neoplasms. oleh Tsung-Hsien Chiang, Yi-Chia Lee, Wan-Chung Liao, Jui-Hung Chung, Han-Mo Chiu, Chia-Hung Tu, Su-Chiu Chen, Ming-Shiang Wu