function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aguilar-Cano, José & Guzmán-Guzmán, Santiago', 2],
    ['Arunraj, Parappurakkal Thazhe', 4],
    ['Blume, Carl Ludwig von', 2],
    ['Cheek, Martin & Traclet, Sébastien', 2],
    ['DeFilipps, Robert A. & Krupnick, Gary A.', 2],
    ['Jarvis, Charlie', 19],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 6],
    ['Linnaeus, Carolus', 3],
    ['Nacoulma, Blandine M. I. & Schmidt, Marco & Hahn, Karen', 5],
    ['Nuraliev, Maxim S. & Yudina, Sophia V. & Truong, Ba Vuong', 17],
    ['Oliveira, Adriana & Bove, Claudia', 6],
    ['Reveal, James L. & Chase, Mark W. & Iii, - Apg & Iii, Apg', 4],
    ['Thornhill, Robert & Krings, Alexander & Lindbo, David', 10],
    ['Wilkin, Paul & Muasya, A. Muthama', 5],
    ['Yunoh, Siti-Munirah Mat & Nikong, Dome', 3],
    ['Other (42)', 53]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=143)',
    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);