It is hormone releasing $IUDs$
$LNG -20$
Lippes loop
$Cu7$
Multiload $375$
According to $1991$ census, the number of females per $1000$ males is
Per year growth in India's population according to $1991$ census is
Infant mortality rate is minimum in:
Which of the following statements about hepatitis$-B$ is incorrect?
Which of the following viruses is not transferred through semen of an infected male?