function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Hao, Shulian & Kendrick, Roger C. & Li, Houhun', 1],
    ['Kim, Sora & Byun, Bong-Kyu & Park, Kyu-Tek & Lee, Seunghwan', 2],
    ['Kovtunovich, V. & Ustjuzhanin, P. & Murphy, R.', 2],
    ['Kovtunovich, Vasily & Ustjuzhanin, Petr', 2],
    ['Landry, Bernard & Roque-Albelo, Lazaro & Matthews, Deborah L.', 1],
    ['Matthews & Miller, Jacqueline Y. & Mark & Goss, Gary', 3],
    ['Matthews, Deborah L. & Miller, Jacqueline Y. & Simon, Mark J.', 4],
    ['Urso & Marchese, Giovanni & Nel, Jacques', 1],
    ['Ustjuzhanin, P. Ya. & Kovtunovich, V. N.', 1],
    ['Ustjuzhanin, Petr & Kovtunovich, Vasyly & Pototski, Aleksander', 2],
    ['Ustjuzhanin, Petr Ya. & Kovtunovich, Vasily N.', 2],
    ['Vargas, Hector A.', 2],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=24)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);