function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Austin, William C. & Ott, Bruce S. & Reiswig, Henry M.', 5],
    ['Ekins, Merrick & Erpenbeck, Dirk & Wörheide, Gert', 4],
    ['Goodwin, Claire & Brickle, Paul', 1],
    ['Goodwin, Claire E. & Berman, Jade & Hendry, Katharine R.', 1],
    ['Göcke, Christian & Janussen, Dorte', 2],
    ['Kim, Young A & Sim, Chung Ja', 3],
    ['Morozov, Grigori & Sabirov, Rushan & Zimina, Olga', 2],
    ['Morrow, Christine & Boury-Esnault, Nicole', 1],
    ['Plotkin, Alexander & Boury-Esnault, Nicole', 2],
    ['Plotkin, Alexander S. & Janussen, Dorte', 1],
    ['Ugalde, Diana & Fernandez, Julio C. C. & Gómez, Patricia', 1],
    ['Van Soest, Rob W. M.', 1],
    ['Van, Rob W. M.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=25)',
    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);