Nghi\u00ean c\u1ee9u c\u1ee7a \u0110\u1ea1i h\u1ecdc California, San Francisco \u2013 M\u1ef9 ch\u1ec9 ra r\u1eb1ng: Ph\u1ee5 n\u1eef mang thai ng\u1ee7 \u00edt h\u01a1n 6 ti\u1ebfng\/\u0111\u00eam c\u00f3 nguy c\u01a1 sinh m\u1ed5 cao g\u1ea5p 4 – 5 l\u1ea7n th\u00f4ng th\u01b0\u1eddng, ho\u1eb7c chuy\u1ec3n d\u1ea1 l\u00e2u h\u01a1n.<\/span><\/p>\nL\u00e3o h\u00f3a da nhanh ch\u00f3ng<\/i><\/b><\/p>\n
Kh\u00f4ng ng\u1ee7 \u0111\u1ee7 gi\u1ea5c s\u1ebd khi\u1ebfn da c\u1ee7a m\u1eb9 b\u1ea7u l\u00e3o h\u00f3a, ch\u1ea3y x\u1ec7 v\u00e0 kh\u00f3 ph\u1ee5c h\u1ed3i h\u01a1n r\u1ea5t nhi\u1ec1u.<\/span><\/p>\nNgo\u00e0i ra, ng\u1ee7 \u00edt c\u0169ng khi\u1ebfn m\u1eb9 b\u1ea7u c\u1ea3m th\u1ea5y kh\u00f4ng t\u1ec9nh t\u00e1o, th\u01b0\u1eddng xuy\u00ean u\u1ec3 o\u1ea3i, m\u1ec7t m\u1ecfi, th\u1eadm ch\u00ed ki\u1ec7t s\u1ee9c<\/span><\/p>\n