Sentence examples for were only infrequently found from inspiring English sources
Prior to the 2007/8 influenza season, NI resistant strains were only infrequently found in patients after treatment with oseltamivir and in patients not exposed to oseltamivir.
However, some serovars most commonly found in the 1995 WHO survey were only infrequently observed in Thailand.
B lymphocytes were only infrequently observed.
Risk-weighted concentrations in this smaller size fraction were only infrequently above the 10−6 health benchmark.
High density of tumour infiltrating lymphocytes (TIL) are found in MSI-H colorectal cancers, whereas it is only infrequently observed in MSI-L and MSS tumours (Jass et al, 1998; Smyrk et al, 2001).
Abbottabad is only infrequently mentioned in the 250,000 leaked embassy cables.
The alkali earths are only infrequently used as supports despite the fact that they have many properties favoring their use.
Meyerbeer's works are only infrequently performed today.
Similarly to living embryos, however, isolation was only infrequently positive (data not shown).
Even then, this was only infrequently.
Validated rodent models exist, but they are considered expensive and are only infrequently used.
