function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baldwin, Carole C. & Robertson, D. Ross & Nonaka, Ai', 2],
    ['Baldwin, Carole C. & Tornabene, Luke & Robertson, D. Ross', 2],
    ['Breder, C. M.', 1],
    ['Böhlke, James E.', 2],
    ['Böhlke, James E. & Randall, John Ernest Dr.', 1],
    ['Gilmore, Richard Grant & Jones, Robert S.', 1],
    ['Laan, Richard Van Der & Eschmeyer, William N. & Fricke, Ronald', 1],
    ['Robins, C. Richard & Colin, Patrick L.', 2],
    ['Sazima, Ivan & Gasparini, João Luiz & Moura, Rodrigo L.', 1],
    ['Tornabene, Luke & Robertson, D. Ross & Baldwin, Carole C.', 1],
    ['Victor, Benjamin C. & Randall, John Ernest Dr.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);