ABO blood group system each parent; each has a 25% chance, but some occur more than once. Historically, ABO blood tests were used in paternity testing, but in 1957 only 50% of American men falsely accused were able to use them as evidence against paternity. Occasionally, the blood types of children are not consistent with expectations—for example, a type O child can be born to an AB parent—due to rare situations, such as Bombay phenotype and cis AB. The A blood type contains about 20 subgroups, of which A1 and A2 are the most common (over 99%). A1 makes up about 80% of all
Jehovah's Witnesses and blood transfusions their comments into English reads: According to sociologist Richard Singelenbreg, the statement appearing in the Dutch edition of "Consolation" may have been published without knowledge of the doctrinal position published in the English July 1945 issue of "Consolation" by the Watch Tower Society's headquarters in the United States. In 1945, the application of the doctrine on blood was expanded to prohibit blood transfusions of whole blood, whether allogeneic or autologous. The prohibition did not specify any punitive measures for accepting a transfusion, but by January 1961—in what was later described as an application of "increased strictness"—it was ruled that it