J van Zyl Selected Research

Progestins (Progestagens)

12/2000	Breast cancer incidence and determinants of cancer stage in the Western Cape.
2/2000	Risk of breast cancer in relation to the use of injectable progestogen contraceptives and combined estrogen/progestogen contraceptives.

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J van Zyl Research Topics

Disease

2	Breast Neoplasms (Breast Cancer) 12/2000 - 02/2000
1	Gastroesophageal Reflux (GERD) 01/2004
1	Heartburn (Pyrosis) 01/2004
1	Eructation (Eructations) 01/2004
1	Flatulence 01/2004
1	Nausea 01/2004
1	Pain (Aches) 01/2004
1	Vomiting 01/2004
1	Weight Gain 01/2004

Drug/Important Bio-Agent (IBA)

2	Contraceptive Agents (Contraceptives)IBA 12/2000 - 02/2000
2	Progestins (Progestagens)IBA 12/2000 - 02/2000
1	AcidsIBA 01/2004
1	Proton Pump InhibitorsIBA 01/2004
1	Pantoprazole (Protonix)FDA LinkGeneric 01/2004
1	MineralsIBA 01/2004
1	Ranitidine (Zantac)FDA LinkGeneric 01/2004
1	Estrogens (Estrogen)FDA Link 02/2000
1	Oral ContraceptivesIBA 02/2000

Therapy/Procedure

2	Injections 12/2000 - 02/2000
1	Kangaroo-Mother Care Method 01/2004