1.   Responses occurred in the presence of atropine and guanethidine, and were all abolished by tetrodotoxin, a universal nerve toxin.

2.   Whether this response occurs only in symptomatic subjects remains controversial as one group of investigators have reported acid stimulated salivary bicarbonate secretion in the absence of symptoms.

3.   The chronic response occurs when the initial increase in cell proliferation fails to compensate for the cell loss.

4.   A CRP response also occurs with other intra-abdominal pathology.

5.   Brooks and Nicholson said they felt the positive response occurred because in large part the film was so bluntly honest about the difficulty of building relationships.

6.   Ollenberger believes a similar response occurs in humans, and has started to look at it directly.

7.   These responses occur almost instantly, with no apparent conscious thought, and are therefore wired firmly into the brain, he said.

8.   This stress response often occurs over prolonged periods of time and can produce emotional and physical challenges leading to potential physical and psychological difficulties.