function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bribiesca-Contreras, Guadalupe & Dahlgren, Thomas G.', 1],
    ['Buckeridge, John S.', 1],
    ['Devictor, Susan T. & Morton, Steve L.', 9],
    ['Gerdes, Klaas & Kihara, Terue Cristina & Martinez Arbizu, Pedro', 7],
    ['Linnaeus, Carolus', 5],
    ['López-González, Pablo J. & Drewery, Jim & Williams, Gary C.', 3],
    ['Namin, Samimi & Ofwegen, Van', 4],
    ['Nutting, Charles C.', 2],
    ['Pérez, Carlos Daniel & Cordeiro, Ralf Tarciso Silva', 4],
    ['Risaro, Jessica & Abstract, Daniel Lauretta', 14],
    ['Risaro, Jessica & Williams, Gary C. & Pereyra, Daniela', 3],
    ['Schejter, L. & Genzano, G. & Pérez, C. D. & Acuña, F.', 2],
    ['Williams, Gary C.', 4],
    ['Williams, Gary C. & Alderslade, Philip', 5],
    ['von Kölliker, Rudolf Albert', 11],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=81)',
    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);