[1] East Carolina Univ, Brody Sch Med, Div Acad Affairs, 600 Moye Blvd AD-47, Greenville, NC 27834 USA
[2] Elizabeth City State Univ, Dept Hlth & Human Studies, Elizabeth City, NC USA
[3] NIEHS, Reprod & Dev Biol Lab, Durham, NC USA
[4] Lenoir Cty Hlth Dept, Kinston, NC USA
[5] North Carolina A&T State Univ, Dept Biol, Greensboro, NC USA