Owen Davies explains that "sleep paralysis" is relatively common, occurring in 20-45% of people.
The new genetic variant is common, occurring in 10percentt of European and African-American populations.
Unsuccessful pregnancies, sometimes called missed pregnancies, are common, occurring in 30 to 50percentt of conceptions.
The disorder results from a genetic defect and is fairly common, occurring in about 1 person in 8,000.
The k antigen is common, occurring in more than 90 percent of blacks and whites.
Next most common, occurring in 10 percent of cases, is guttate psoriasis.
It is relatively common, occurring in about 1 percent of the general population worldwide.
But the study, released today, suggests they are extremely common, occurring in about 4percentt of the United States population each year.
Chronic hydramnios, in which fluid accumulates slowly, is fairly common, occurring as often as once in 200 or 300 deliveries.
Monogamy is common, occurring in about 80 90 percent of breeding pairs between one breeding season and another.
Drug holidays were common, occurring in 41% of the analyses.
