function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Banks, Nathan', 2],
    ['Borges, Paulo A. V. & Gaspar, Clara', 2],
    ['ENGEL, MICHAEL S. & GRIMALDI, DAVID A.', 2],
    ['Hassan, Muhammad Asghar & Oswald, John D. & Zia, Ahmed', 11],
    ['Jepson, James E. & Penney, David & Green, David I.', 2],
    ['Linnaeus, Carolus', 3],
    ['Makarkin, Vladimir N.', 5],
    ['Makarkin, Vladimir N. & Wedmann, Sonja & Weiterschan, Thomas', 4],
    ['Nakamine, Hiroshi & Yamamoto, Shûhei & Takahashi, Yui', 3],
    ['Sosa, Francisco & Lara, Rogéria I. R. & Martins, Caleb C.', 3],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 3],
    ['Tillier, Pierre', 9],
    ['Walker, Francis', 4],
    ['Zhao, Yang & Tian, Yanlin & Liu, Zhiqi', 6],
    ['Zhao, Yang & Yan, Bingzhen & Liu, Zhiqi', 6],
    ['Other (23)', 28]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=93)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);