TY - GEN AU - Kuypers,H M AU - Huisjes,H J TI - [Anencephaly] SN - 0028-2162 PY - 1971///0723 KW - Abortion, Spontaneous KW - Adult KW - Anencephaly KW - genetics KW - Blood Group Antigens KW - Female KW - Humans KW - Male KW - Maternal Age KW - Parity KW - Pregnancy KW - Seasons KW - Socioeconomic Factors N1 - Publication Type: Journal Article ER -