National policies for hepatitis B vaccinations.
Tandon
B N
BN
D003906:Developing Countries; D006291:Health Policy; D006509:Hepatitis B / Q000517:prevention & control*; D017325:Hepatitis B Vaccines; D006801:Humans; D007194:India; D014611:Vaccination; D014761:Viral Hepatitis Vaccines
D017325:Hepatitis B Vaccines; D014761:Viral Hepatitis Vaccines