function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Al-Handal, Adil Y. & Riaux-Gobin, Catherine & Jahn, Regine', 4],
    ['Al-Handal, Adil Y. & Torstensson, Anders & Wulff, Angela', 7],
    ['Basilewsky, S.', 2],
    ['Costa, Lívia F. & Wetzel, Carlos E. & Maquardt, Gisele C.', 12],
    ['Enache, Mihaela D. & Potapova, Marina & Sheibley, Rich', 3],
    ['Ferreira da Silva, Juliana & Oliveira, Maria Angélica', 6],
    ['Joh, Gyeongje', 32],
    ['Jüttner, Ingrid & Hamilton, Paul B. & Wetzel, Carlos E.', 6],
    ['Kopalová, Kateřina & Zidarova, Ralitsa & Vijver, Bart Van De', 4],
    ['Kulikovskiy, Maxim & Lange-Bertalot, Horst & Witkowski, Andrzej', 5],
    ['Marquardt, Gisele C. & Bicudo, Denise C.', 2],
    ['Riaux-Gobin, Catherine & Compère, Pierre & Jordan, Richard W.', 3],
    ['Riaux-Gobin, Catherine & Frankovich, Thomas & Witkowski, Andrzej', 3],
    ['Riaux-Gobin, Catherine & Garcia, Marinês & Witkowski, Andrzej', 9],
    ['Vijver, Bart Van De & Kopalová, Kateřina', 4],
    ['Other (25)', 29]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=131)',
    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);