The answer is first base. I played softball for 5 years.
Anti tobacco messages, expense, and positive peer pressure
A fertility doctor is a reproductive endocrinologist — a physician who practices a subspecialty of obstetrics and gynecology called reproductive endocrinology and infertility (REI). REI is an area of medicine that addresses hormonal functioning as it pertains to reproduction and infertility in both women and men.
A social psychologist would be interested in how groups interact.