function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bott, Nathan J. & Cribb, Thomas H.', 1],
    ['Bott, Nathan J. & Miller, Terrence L. & Cribb, Thomas H.', 3],
    ['Bray, Rodney A. & Justine, Jean-Lou', 1],
    ['Chauhan, B. S.', 1],
    ['Durio, Walter O. & Manter, Harold W.', 1],
    ['Manter, Harold W.', 1],
    ['Nagaty, H. F.', 2],
    ['Velasquez, Carmen C.', 1],
    ['Wang, Guitang & Wang, Wei-Jun', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=12)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);