Under socialism, all citizens had access to medical care, and this is still the case. Physicians begin training at the start of their university education. The usual period of training for a physician is six years.
Croatia's rivers belong to the Adriatic and the Black Sea basin. The rivers in the interior are large and calmer (Sava, Drava, Danube).
Couples arrange their own marriages. Young people usually meet in school, through friends, or at work. They often begin to spend time together in the company of a larger group of friends. A young man and woman usually have a serious relationship before they meet each other's families. Individuals theoretically have a great deal of choice about marriage partners, but Croats tend to marry people of the same nationality and religion and with the same educational level and social status.