TY  - JOUR
A1  - Levine, R.J.
A1  - Mathew, R.M.
A1  - Chenault, C.B.
A1  - Brown, M.H.
A1  - Hurtt, M.E.
A1  - Bentley, K.S.
A1  - Mohr, K.L.
A1  - Working, P.K.
T1  - Differences in the quality of semen in outdoor workers during summer and winter
Y1  - 1990
DO  - 10.1056/NEJM199007053230103
VL  - 323
IS  - 1

ER  -