Sentence:  <WSD>Psychoprophylaxis</WSD> enjoyed a meteoric rise in the USSR and beyond, Vel'vovskii developed the method in 1948-1948, and it became national policy in the USSR in early 1951, when the Ministry of Public Health launched a campaign for its promotion. <WSD>Psychoprophylaxis</WSD> received the state's enthusiastic support because it required relatively little financial investment, had the added appeal of being legitimated on the basis of work by Russia's famous scientist, and supported the regime's pro-natalist agenda. 
Meaning of the word marked with <WSD> tags:  A method of preparing women for natural (childbirth) by means of special breathing, relaxation techniques and psychological conditioning, practiced without anaesthetics.