function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baker, Edmund Gilbert', 1],
    ['Chen, Ronglian & Zhang, Faqi & Chen, Shilong & Chi, Xiaofeng', 1],
    ['Coode, Mark James Elgar', 8],
    ['DeFilipps, Robert A. & Krupnick, Gary A.', 5],
    ['Diels, Friedrich Ludwig Emil', 2],
    ['Engel, Julien & Sabatier, Daniel', 2],
    ['Exell, Arthur Wallis', 15],
    ['Jarvis, Charlie', 3],
    ['McQuate, Grant T. & Liquido, Nicanor J.', 1],
    ['Metusala, Destario & Farishy, Dee Dee Al', 1],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 16],
    ['Monteiro, Francisca & Costa, Esperança Da & Kissanga, Raquel', 2],
    ['Nacoulma, Blandine M. I. & Schmidt, Marco & Hahn, Karen', 5],
    ['Turner, Ian M.', 1],
    ['White, J.', 2],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=67)',
    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);