Johannes L. Botha

Patients' help-seeking experiences and delay in cancer presentation: a qualitative synthesis

Lucy Smith, Catherine Pope, Johannes L. Botha · The Lancet · 2005 · 529 citations

Nursing, Health Behavior, Oncology +15

Mortality From Cerebrovascular Disease in a Cohort of 23 000 Patients With Insulin-Treated Diabetes

S. P. Laing, Anthony J. Swerdlow, Lucy Carpenter et al. · Stroke · 2003 · 131 citations · Full text

Medicine, Internal Medicine, Clinical Epidemiology +14

Additive and multiplicative covariate regression models for relative survival incorporating fractional polynomials for time‐dependent effects

Paul C. Lambert, Lucy Smith, David R. Jones et al. · Statistics in Medicine · 2005 · 73 citations

Public Health, Biostatistics, Oncology +17

EXCESS MORTALITY FROM STOMACH CANCER, LUNG CANCER, AND ASBESTOSIS AND/OR MESOTHELIOMA IN CROCIDOLITE MINING DISTRICTS IN SOUTH AFRICA1

Johannes L. Botha, Les Irwig, Peter M. Strebel · American Journal of Epidemiology · 1986 · 58 citations

Pharmacy, Environmental Sciences, Oncology +16

Providing more up-to-date estimates of patient survival: a comparison of standard survival analysis with period analysis using life-table methods and proportional hazards models

Lucy Smith, Paul C. Lambert, Johannes L. Botha et al. · Journal of Clinical Epidemiology · 2004 · 17 citations

Public Health, Biostatistics, Clinical Epidemiology +13