1. Life and death before birth;Lindley;Editorial. Nature,1979
2. External human fertilization;Grobstein;Scient Am,1979
3. Thirty-four fertilized human ova, good, bad and indifferent recovered from two hundred and ten women of known fertility: a study of the biological waste in early human pregnancy;Hertig;Pediatrics,1959
4. Changes in plasma proteins during pregnancy;Joseph;Ann Clin Lab Sci,1978
5. Studies of the rosette inhibition test in pregnant mice: evidence of immunosuppression?;Morton;Proc R Soc Lond B,1976