function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chetverikov, Philipp E.', 13],
    ['Chetverikov, Philipp E. & Beaulieu, Frédéric & Cvrković, Tatjana', 4],
    ['Chetverikov, Philipp E. & Craemer, Charnie', 3],
    ['Chetverikov, Philipp E. & Petanović, Radmila U.', 4],
    ['Chetverikov, Philipp E. & Sukhareva, Sogdiana I.', 6],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 5],
    ['Navia, Denise & Duarte, Mercia Elias & Flechtmann, Carlos H. W.', 7],
    ['Navia, Denise & Gondim, Manoel G. C. & De, Gilberto J.', 12],
    ['Pye, Daniel R. L.', 2],
    ['Skoracka, Anna & Macuk, Lucyna & Rakowski, Wojciech', 3],
    ['Stalažs, Arturs & Turka, Ināra', 3],
    ['XUE, XIAO-FENG & GUO, JING-FENG & HONG, XIAO-YUE', 7],
    ['Xue, Xiao-Feng & Han, Xiao & Song, Zi-Wei & Hong, Xiao-Yue', 3],
    ['Xue, Xiao-Feng & Hong, Xiao-Yue', 3],
    ['Xue, Xiao-Feng & Zhang, Zhi-Qiang', 5],
    ['Other (10)', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=93)',
    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);