function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ferguson, D. J. & Glatz, R. V. & Yeates, D. K.', 3],
    ['Ferguson, David J. & Irwin, Michael E. & Yeates, David K.', 10],
    ['Ferguson, David J. & Lambkin, Christine L. & Yeates, David K.', 8],
    ['Ferguson, David J. & Yeates, David K.', 2],
    ['Irwin, Michael E. & Winterton, Shaun L.', 1],
    ['Lyneborg, Leif', 48],
    ['Winterton, Shaun L.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=73)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);