How many deaths were during Wietnam War
This method includes only 4 simple questions about the sisters of the woman in question:Question 1 : How many sisters have you ever had , born to the same mother , who ever reached the age 15 ( or who were ever married ) , including those who are now dead?Question 2 : How many of your sisters who reached the age of 15 are alive now?Question 3 : How many of these sisters are dead?Question 4 : How many of your sisters who are dead died during a pregnancy or during childbirth , or during the six weeks after the end of a pregnancy ?