function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Angus, Robert B & Sadílek, David & Shaarawi, Fatma', 2],
    ['Darilmaz, Mustafa C. & İncekara, Ümit', 28],
    ['Fikáček, Martin & Delgado, Juan A. & Gentili, Elio', 3],
    ['Gentili, Elio', 12],
    ['Gentili, Elio & Fikaček, Martin', 10],
    ['Jia, Fenglong & Chen, Jia-Hui & Fikacek, Martin', 15],
    ['Jia, Fenglong & Gentili, Elio & Fikáček, Martin', 18],
    ['Jia, Fenglong & Song, Keqing & Gentili, Elio', 2],
    ['Litovkin, S. V. & Efimov, D. A.', 3],
    ['Liu, Hsing-Che & Fikáček, Martin', 8],
    ['Minoshima, Yûsuke N. & Iwata, Yasuyuki & Fikáček, Martin', 2],
    ['Ribera, Ignacio & Hernando, Carles & Cieslak, Alexandra', 3],
    ['Salah, Mohamed & Régil Cueto, Juan Antonio', 5],
    ['Short, Andrew E. Z. & Fikáček, Martin', 17],
    ['Zhang, Ruijuan & Jia, Fenglong', 4],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=138)',
    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);