Sentence examples for were only rarely found from inspiring English sources

Both necrotic areas and CD-31-positive vessels with a wide diameter were only rarely found in the centre of non-co-transplanted tumours (Fig. 3).

Notwithstanding, the most frequent STEC serogroups in patients, except O91, were only rarely found in food.

Vacuoles were only rarely found in cells not transfected with TMV-RNA, and only a few vacuoles were observed in cells incubated with liposomes only.

After optimalisation of hand hygiene, increasing the compliance to contact precautions and intensifying the cleaning, high-touch surfaces were only rarely found positive for VRE/VSE.

Analysis of single organ scores revealed that a cardiac failure was preceding in the majority of nonsurvivors, whereas other early organ dysfunctions were only rarely found.

This has recently been further supported by a study that showed that circulating breast tumour cells were enriched in cells expressing mesenchymal markers whereas mesenchymal markers were only rarely found in cells from the matched primary tumours [ 234].

In southern Africa, Loxodonta and Elephas do not occur in the same fossil assemblages; in other parts of the continent, the two genera are only rarely found together.

Other rodent-associated human-pathogenic orthohantaviruses present in Europe are Dobrava-Belgrade, Tula and Seoul orthohantavirus, with Tula orthohantavirus infections being only rarely found in humans7,8,9,10,11,12.

The use of interior bearing walls so greatly reduces the flexibility needed in these buildings that they are only rarely found.

Indeed, to be in that playhouse at a sold-out matinee one recent Wednesday was to feel a shared affection between a performer and his public that is only rarely found nowadays.

A digestive tract with one or more crop chambers containing stones might have aided in the food-pulverizing process, but such gastroliths, or "stomach-stones," are only rarely found in association with dinosaur skeletons.