Ulrich Guller

A suite of web applications to streamline the interdisciplinary collaboration in secondary data analyses (2004)

Pietrobon, Ricardo, Guller, Ulrich, Martins, Henrique, Menezes, Andreia P, Higgins, Laurence D, Jacobs, Danny O

Abstract Background We describe a system of web applications designed to streamline the interdisciplinary collaboration in outcomes research. Description The outcomes research process can be...

Predicting gender differences as latent variables: summed scores, and individual item responses: a methods case study (2004)

Pietrobon, Ricardo, Taylor, Marcus, Guller, Ulrich, Higgins, Laurence D, Jacobs, Danny O, Carey, Timothy

Abstract Background Modeling latent variables such as physical disability is challenging since its measurement is performed through proxies. This poses significant methodological challenges. The...

Predicting gender differences as latent variables: summed scores, and individual item responses: a methods case study

Pietrobon, Ricardo, Taylor, Marcus, Guller, Ulrich, Higgins, Laurence D, Jacobs, Danny O, Carey, Timothy

A suite of web applications to streamline the interdisciplinary collaboration in secondary data analyses

Pietrobon, Ricardo, Guller, Ulrich, Martins, Henrique, Menezes, Andreia P, Higgins, Laurence D, Jacobs, Danny O

Laparoscopic Versus Open Appendectomy: Outcomes Comparison Based on a Large Administrative Database

Guller, Ulrich, Hervey, Sheleika, Purves, Harriett, Muhlbaier, Lawrence H., Peterson, Eric D., Eubanks, Steve, ...

The objective of our investigation was to compare outcomes between laparoscopic and open appendectomy based on a large administrative database. Discharge abstracts of over 43,000 patients were used...

Hospital Bill in Open and Laparoscopic Appendectomy: Reply

Guller, Ulrich, Peterson, Eric D., Pietrobon, Ricardo

Axillary Recurrence Rate in Breast Cancer Patients With Negative Sentinel Lymph Node (SLN) or SLN Micrometastases: Prospective Analysis of 150 Patients After SLN Biopsy

Langer, Igor, Marti, Walter Richard, Guller, Ulrich, Moch, Holger, Harder, Felix, Oertli, Daniel, ...

We prospectively investigated the rate of axillary recurrences of 234 breast cancer patients who underwent sentinel lymph node (SLN) biopsy. In the subset without formal axillary lymph node...

Disseminated Single Tumor Cells as Detected by Real-Time Quantitative Polymerase Chain Reaction Represent a Prognostic Factor in Patients Undergoing Surgery for Colorectal Cancer

Guller, Ulrich, Zajac, Paul, Schnider, Annelies, Bösch, Beatrix, Vorburger, Stefan, Zuber, Markus, ...

Tissue Microarray Evaluation of Melanoma Antigen E (MAGE) Tumor-Associated Antigen Expression: Potential Indications for Specific Immunotherapy and Prognostic Relevance in Squamous Cell Lung Carcinoma

Bolli, Martin, Kocher, Thomas, Adamina, Michel, Guller, Ulrich, Dalquen, Peter, Haas, Philippe, ...

Detecting Pheochromocytoma: Defining the Most Sensitive Test

Guller, Ulrich, Turek, Joe, Eubanks, Steve, Delong, Elizabeth R., Oertli, Daniel, Feldman, Jerome M.

The objective of the present investigation was to define the most sensitive biochemical tests to establish the diagnosis of pheochromocytoma. Based on prospectively collected data on 152 patients...

Predicting gender differences as latent variables: summed scores, and individual item responses: a methods case study

Pietrobon, Ricardo, Taylor, Marcus, Guller, Ulrich, Higgins, Laurence D, Jacobs, Danny O, Carey, Timothy

A suite of web applications to streamline the interdisciplinary collaboration in secondary data analyses

Pietrobon, Ricardo, Guller, Ulrich, Martins, Henrique, Menezes, Andreia P, Higgins, Laurence D, Jacobs, Danny O

Laparoscopic Versus Open Appendectomy: Outcomes Comparison Based on a Large Administrative Database

Guller, Ulrich, Hervey, Sheleika, Purves, Harriett, Muhlbaier, Lawrence H., Peterson, Eric D., Eubanks, Steve, ...

The objective of our investigation was to compare outcomes between laparoscopic and open appendectomy based on a large administrative database. Discharge abstracts of over 43,000 patients were used...

Hospital Bill in Open and Laparoscopic Appendectomy: Reply

Guller, Ulrich, Peterson, Eric D., Pietrobon, Ricardo

Axillary Recurrence Rate in Breast Cancer Patients With Negative Sentinel Lymph Node (SLN) or SLN Micrometastases: Prospective Analysis of 150 Patients After SLN Biopsy

Langer, Igor, Marti, Walter Richard, Guller, Ulrich, Moch, Holger, Harder, Felix, Oertli, Daniel, ...

We prospectively investigated the rate of axillary recurrences of 234 breast cancer patients who underwent sentinel lymph node (SLN) biopsy. In the subset without formal axillary lymph node...

Disseminated Single Tumor Cells as Detected by Real-Time Quantitative Polymerase Chain Reaction Represent a Prognostic Factor in Patients Undergoing Surgery for Colorectal Cancer

Guller, Ulrich, Zajac, Paul, Schnider, Annelies, Bösch, Beatrix, Vorburger, Stefan, Zuber, Markus, ...

Tissue Microarray Evaluation of Melanoma Antigen E (MAGE) Tumor-Associated Antigen Expression: Potential Indications for Specific Immunotherapy and Prognostic Relevance in Squamous Cell Lung Carcinoma

Bolli, Martin, Kocher, Thomas, Adamina, Michel, Guller, Ulrich, Dalquen, Peter, Haas, Philippe, ...

Detecting Pheochromocytoma: Defining the Most Sensitive Test

Guller, Ulrich, Turek, Joe, Eubanks, Steve, Delong, Elizabeth R., Oertli, Daniel, Feldman, Jerome M.

The objective of the present investigation was to define the most sensitive biochemical tests to establish the diagnosis of pheochromocytoma. Based on prospectively collected data on 152 patients...

Morbidity of Sentinel Lymph Node Biopsy (SLN) Alone Versus SLN and Completion Axillary Lymph Node Dissection After Breast Cancer Surgery: A Prospective Swiss Multicenter Study on 659 Patients

Langer, Igor, Guller, Ulrich, Berclaz, Gilles, Koechli, Ossi R., Schaer, Gabriel, Fehr, Mathias K., ...

This multicenter prospective study shows that the morbidity after sentinel lymph node (SLN) biopsy is significantly lower compared with axillary lymph node dissection. However, the morbidity after...