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Cattle
Twins
Pregnancy
Animal Pregnancy
Pregnancy, Multiple
Gene Expression Regulation, Developmental
Gestational Age
Pregnancy Proteins
RNA, Messenger
Placental Lactogen
Gene Expression Profiling
Reverse Transcriptase Polymerase Chain Reaction
In Situ Hybridization
Oligonucleotide Array Sequence Analysis
Placenta
Oocytes
Trophoblasts
Cattle Diseases
Embryonic Development
Lactation
Co-Publications
14
10
9
7
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3
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