1.
Pol Tyg Lek
; 28(29): 1105-7, 1973 Jul 16.
Article
in Polish
| MEDLINE
| ID: mdl-4269629
Subject(s)
Congenital Abnormalities/epidemiology , Abnormalities, Multiple/epidemiology , Child , Child, Preschool , Down Syndrome/epidemiology , Female , Humans , Infant , Maternal Age , Parity , Poland , Pregnancy
2.
Wiad Lek
; 22(6): 543-5, 1969 Mar 15.
Article
in Polish
| MEDLINE
| ID: mdl-4892419