Anna Kirkpatrick

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Purpose. To report the outcome of 37 patients with metastatic osteosarcoma entered into a large randomized trial (EOI 80831/MRC B002) comparing two different regimens of chemotherapy in patients with osteosarcoma.Methods. Patients with biopsy-proven osteosarcoma localized and metastatic, age 40 years or younger, were randomized to receive either two-drug(More)
We discuss the problem of finding critical sets in graphs, a concept which has appeared in a number of guises in the combinatorics and graph theory literature. The case of the Sudoku graph receives particular attention, because critical sets correspond to minimal fair puzzles. We define four parameters associated with the sizes of extremal critical sets and(More)
We examine the integer partition poset, P n , ordered by a covering relation to determine whether or not it has the Sperner property. To show that P n is Sperner we must prove it satisfies unimodality and the bipartite matching property. It has been shown computationally by Canfield for n ≤ 2000 and asymptotically by Szekeres for n sufficiently large that P(More)
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