Maternal age and serum concentration of human chorionic gonadotropin in early pregnancy
2014 ◽
Vol 93
(12)
◽
pp. 1290-1294
◽
Keyword(s):
Keyword(s):
2015 ◽
Vol 94
(4)
◽
pp. 443-444
2015 ◽
Vol 94
(4)
◽
pp. 444-444
1991 ◽
Vol 55
(3)
◽
pp. 492-496
◽
1980 ◽
Vol 13
(4)
◽
pp. 319-329
◽
2020 ◽
Vol 114
(4)
◽
pp. 801-808
◽
1988 ◽
Vol 2
(3-4)
◽
pp. 199-203
◽
Keyword(s):