AJ, Silman; P, Mitchell; RJ, Nicholls; FA, Macrae; RJ, Leicester; CI, Bartram; MJ, Simmons; PD, Campbell; CE, Hearn; PJ, Constable (1983). "Self-reported dark red bleeding as a marker comparable with occult blood testing in screening for large bowel neoplasms". The British Journal of Surgery. 70 (12). Br J Surg: 721–724. doi:10.1002/bjs.1800701209. ISSN0007-1323. PMID6605779. S2CID40748593.
Dent, Owen F.; Goulston, Kerry J.; Tennant, Christopher C.; Langeluddecke, Pauline; Mant, Andrea; Chapuis, Pierre H.; Ward, Margaret; Leslie Bokey, E. (1990). "Rectal bleeding: Patient delay in presentation". Diseases of the Colon & Rectum. 33 (10): 851–857. doi:10.1007/BF02051921. ISSN0012-3706. PMID2209274. S2CID263041837.
AJ, Silman; P, Mitchell; RJ, Nicholls; FA, Macrae; RJ, Leicester; CI, Bartram; MJ, Simmons; PD, Campbell; CE, Hearn; PJ, Constable (1983). "Self-reported dark red bleeding as a marker comparable with occult blood testing in screening for large bowel neoplasms". The British Journal of Surgery. 70 (12). Br J Surg: 721–724. doi:10.1002/bjs.1800701209. ISSN0007-1323. PMID6605779. S2CID40748593.
Dent, Owen F.; Goulston, Kerry J.; Tennant, Christopher C.; Langeluddecke, Pauline; Mant, Andrea; Chapuis, Pierre H.; Ward, Margaret; Leslie Bokey, E. (1990). "Rectal bleeding: Patient delay in presentation". Diseases of the Colon & Rectum. 33 (10): 851–857. doi:10.1007/BF02051921. ISSN0012-3706. PMID2209274. S2CID263041837.
AJ, Silman; P, Mitchell; RJ, Nicholls; FA, Macrae; RJ, Leicester; CI, Bartram; MJ, Simmons; PD, Campbell; CE, Hearn; PJ, Constable (1983). "Self-reported dark red bleeding as a marker comparable with occult blood testing in screening for large bowel neoplasms". The British Journal of Surgery. 70 (12). Br J Surg: 721–724. doi:10.1002/bjs.1800701209. ISSN0007-1323. PMID6605779. S2CID40748593.
Dent, Owen F.; Goulston, Kerry J.; Tennant, Christopher C.; Langeluddecke, Pauline; Mant, Andrea; Chapuis, Pierre H.; Ward, Margaret; Leslie Bokey, E. (1990). "Rectal bleeding: Patient delay in presentation". Diseases of the Colon & Rectum. 33 (10): 851–857. doi:10.1007/BF02051921. ISSN0012-3706. PMID2209274. S2CID263041837.
AJ, Silman; P, Mitchell; RJ, Nicholls; FA, Macrae; RJ, Leicester; CI, Bartram; MJ, Simmons; PD, Campbell; CE, Hearn; PJ, Constable (1983). "Self-reported dark red bleeding as a marker comparable with occult blood testing in screening for large bowel neoplasms". The British Journal of Surgery. 70 (12). Br J Surg: 721–724. doi:10.1002/bjs.1800701209. ISSN0007-1323. PMID6605779. S2CID40748593.
Dent, Owen F.; Goulston, Kerry J.; Tennant, Christopher C.; Langeluddecke, Pauline; Mant, Andrea; Chapuis, Pierre H.; Ward, Margaret; Leslie Bokey, E. (1990). "Rectal bleeding: Patient delay in presentation". Diseases of the Colon & Rectum. 33 (10): 851–857. doi:10.1007/BF02051921. ISSN0012-3706. PMID2209274. S2CID263041837.