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Johan Grobbelaar

Observed names: Grobbelaar, Johan, J Grobbelaar, J J Grobbelaar, J.J. Grobbelaar, JJ Grobbelaar
ORCID: 0009-0004-5719-8414
Observed ORCID: 0009-0004-5719-8414
OpenAlex ID: A5109800592
Haplotype associations of three DNA polymorphisms at the human low density lipoprotein receptor gene locus in familial hypercholesterolaemia.
1987 · M J Kotze, E Langenhoven, et al. · Journal of Medical Genetics · 27
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Lessons from the hepatoblastoma-familial polyposis connection
2012 · S W Moore, N Tshifularo, et al. · South African Medical Journal · 13
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Familial adenomatous polyposis in two Black South African families
2002 · JJ Grobbelaar, E Wilken, et al. · Clinical Genetics · 6
The use of DNA markers in the pre-clinical diagnosis of familial adenomatous polyposis in families in South Africa.
1995 · J J Grobbelaar, C J Oosthuizen, et al. · PubMed · 5
Inherited colon cancers.
2000 · P A Goldberg, M V Madden, et al. · PubMed · 4
The relationship between congenital hypertrophy of the retinal pigment epithelium (CHRPE) and germline mutations in the adenomatous polyposis coli (APC) gene
1999 · A. Ziskind, M.J. Kotze, et al. · Ophthalmic Genetics · 4
Penicillamine therapy in rheumatoid arthritis.
1984 · J Grobbelaar, O L Meyers · PubMed · 4
Minor salivary gland tumours: Malignant or benign? A 10-year local retrospective review
2025 · Johan Grobbelaar, Kathryne E. Wright, et al. · Journal of the Colleges of Medicine of South Africa · 3
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A novel deletion at codon 441 of the APC gene associated with ophthalmic lesions (CHRPE) in a South African family.
1996 · J J Grobbelaar, A Ziskind, et al. · Journal of Medical Genetics · 2
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Cochlear size variation in a large-scale international multicentre cohort
2026 · Andrea Schreier, Mario Zernotti, et al. · Hearing Research · 1
Advanced tumour-induced osteomalacia secondary to sinonasal phosphaturic mesenchymal tumour
2024 · Monica van Wijk, Leon Janse van Rensburg, et al. · South African Journal of Radiology · 1
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Familial adenomatous polyposis coli in South Africa--molecular basis and diagnosis.
2000 · J J Grobbelaar, R Fortuin, et al. · PubMed · 1
Salivary gland tumours: a single-centre study
2026 · J Grobbelaar, SE Adam, et al. · South African Journal of Surgery
Salivary gland tumours: a meta-analysis of pooled data from South Africa and comparison with international reports
2026 · J Grobbelaar, SM Oelofsen, et al. · South African Journal of Surgery
Parotidectomy specimens: cytological and histological correlation
2026 · J Grobbelaar, J Opperman, et al. · South African Journal of Surgery
Should a tracheostomy wound be closed primarily?
2026 · A Thomas, GHM De Bruyn, et al. · South African Journal of Surgery
Impact of thyroid dysfunction on clinical outcome in head and neck cancer: a systematic review and meta-analysis
2025 · Sandeepa N. C, Tina S. Roberts, et al. · BMC Cancer
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Determinants of delayed specialist presentation in head and neck cancer to Tygerberg Hospital, Western Cape
2025 · Petrus J. Vermeulen, Johan Grobbelaar · Journal of the Colleges of Medicine of South Africa
Extranodal NK/T-cell Lymphoma, Nasal Type: Report of a Case and Review of the South African Literature
2025 · Anneze Odendaal, Amir Afrogheh, et al. · South African Dental Journal
The radiological features of HPV-positive vs HPV-negative OPSCC at a South African hospital
2024 · Anand Naranbhai, Amir Afrogheh, et al. · South African Journal of Radiology
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Presymptomatic diagnosis of familial adenomatous polyposis using intragenic polymorphisms and CA repeats flanking the APC gene.
1996 · V M Hayes, M J Kotze, et al. · PubMed
Works count: 23
Citation count: 71
H-index: 4
I10-index: 2
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