Gastroenterology.
O'Donnell LJ, Alstead EM, Farthing MJ.
O'Donnell LJ, et al. Among authors: farthing mj.
Postgrad Med J. 1990 Jun;66(776):419-34. doi: 10.1136/pgmj.66.776.419.
Postgrad Med J. 1990.
PMID: 2216993
Free PMC article.
Review.
No abstract available.