A film about the rescue of newborns endangered by an incompatible combination of parents' blood, which is possible thanks to the discovery of the Rh factor of human blood.
| Tagline | |
| Release Date: | Jan 01, 1950 |
| Genres: | Documentary |
| Production Company: | Československý státní film |
| Production Countries: | Czechoslovakia |
| Casts: | |
| Status: | Released |
| Budget: | $0 |
| Revenue: | 0 |
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