function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aplin, Kenneth P. & Fitch, Alison J. & King, Dennis J.', 2],
    ['Barabanov, Andrei & Milto, Konstantin', 2],
    ['Ceríaco, L. M. P. & De Sá, S. & Bandeira, S. & Valério, H.', 1],
    ['Conrad, J. L.', 1],
    ['Figueroa, Alex & Low, Martyn E. Y. & Lim, Kelvin K. P.', 6],
    ['Hakim, Jonathan & Trageser, Scott J. & Ghose, Animesh', 2],
    ['Kirchhof, Sebastian & Wasonga, Victor & Mazuch, Tomáš', 2],
    ['Koch, André & Gaulke, Maren & Böhme, Wolfgang', 7],
    ['Maryan, Brad & Oliver, Paul M. & Fitch, Alison J.', 4],
    ['Segniagbeto, Gabriel Hoinsoude & Trape, Jean-François', 3],
    ['Weijola, Valter & Kraus, Fred', 2],
    ['Weijola, Valter & Vahtera, Varpu & Koch, André', 2],
    ['Welton, Luke J. & Travers, Scott L. & Siler, Cameron D.', 3],
    ['Ziegler, Thomas & Schmitz, Andreas & Koch, André', 3],
    ['Šmíd, Jiří & Moravec, Jiří & Kodym, Petr & Kratochvíl, Lukáš', 2],
    ['Other (21)', 21]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=63)',
    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);