RT Journal Article SR Electronic T1 Low dosage progestagen as an oral contraceptive: a clinical study JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 295 OP 298 VO 109 IS 4 A1 Whyte, J. C. A1 Pooransingh, C. S. YR 1973 UL http://www.cmaj.ca/content/109/4/295.abstract