function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ballantyne, Lesley & Fu, Xinhua & Lambkin, Christine', 1],
    ['Ballantyne, Lesley & Kawashima, Itsuro & Jusoh, Wan F. A.', 1],
    ['Ballantyne, Lesley A. & Lambkin, Christine', 2],
    ['Ballantyne, Lesley A. & Lambkin, Christine L.', 9],
    ['Ballantyne, Lesley A. & Lloyd, James E.', 14],
    ['Fu, Xin Hua & Ballantyne, Lesley', 1],
    ['Fu, Xinhua & Ballantyne, Lesley & Lambkin, Christine', 4],
    ['Gorham, Henry Stephen', 2],
    ['Gurcel, Kevin & Chittaro, Yannick & Sanchez, Andreas', 4],
    ['Ho, - Z.', 49],
    ['Keller, Oliver', 1],
    ['Keller, Oliver & Ballantyne, Lesley', 3],
    ['Kiesenwetter, E. A. H. von', 4],
    ['Kundrata, Robin & Hoffmannova, Johana & Hinson, Kevin R.', 1],
    ['Thancharoen, Anchana & Ballantyne, Lesley A. & Branham, Marc A.', 1],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=98)',
    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);