APA

van Hogezand R. A., van Hees P. A., van Gorp J. P., van Lier H. J., Bakker J. H., Wesseling P., van Haelst U. J. & van Tongeren J. H. (19911218). Double-blind comparison of 5-aminosalicylic acid and acetyl-5-aminosalicylic acid suppositories in patients with idiopathic proctitis. : Alimentary pharmacology & therapeutics.

Chicago

van Hogezand R A, van Hees P A, van Gorp J P, van Lier H J, Bakker J H, Wesseling P, van Haelst U J and van Tongeren J H. 19911218. Double-blind comparison of 5-aminosalicylic acid and acetyl-5-aminosalicylic acid suppositories in patients with idiopathic proctitis. : Alimentary pharmacology & therapeutics.

Harvard

van Hogezand R. A., van Hees P. A., van Gorp J. P., van Lier H. J., Bakker J. H., Wesseling P., van Haelst U. J. and van Tongeren J. H. (19911218). Double-blind comparison of 5-aminosalicylic acid and acetyl-5-aminosalicylic acid suppositories in patients with idiopathic proctitis. : Alimentary pharmacology & therapeutics.

MLA

van Hogezand R A, van Hees P A, van Gorp J P, van Lier H J, Bakker J H, Wesseling P, van Haelst U J and van Tongeren J H. Double-blind comparison of 5-aminosalicylic acid and acetyl-5-aminosalicylic acid suppositories in patients with idiopathic proctitis. : Alimentary pharmacology & therapeutics. 19911218.