1 Subjects: “...human embryonal/fetal tissues...”

2 Subjects: “...human health...”

3 Subjects: “...human health analysis...”

4 Subjects: “...human disease...”

5 Subjects: “...human placenta...”

6 Subjects: “...human dihydrofolate reductase...”

7 Subjects: “...human diet...”

8 Subjects: “...human diet...”

9 Subjects: “...human diet...”