function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bahls, Loren', 3],
    ['Bahls, Loren & Pierce, John & Apfelbeck, Randy & Olsen, Lois', 1],
    ['Ferreira da Silva, Juliana & Oliveira, Maria Angélica', 1],
    ['Fofana, Cheikh Abdoul Kader & Sow, El Hadji & Taylor, Jonathan', 1],
    ['Glushchenko, Anton & Gusev, Evgeniy & Maltsev, Yevhen', 1],
    ['Glushchenko, Anton & Mironov, Andrei & Kuznetsova, Irina', 1],
    ['Gong, Zhijun & Li, Yanling & Metzeltin, Ditmar', 8],
    ['Grizancic, Lana & Baricevic, Ana & Smodlaka Tankovic, Mirta', 1],
    ['Guo, Ji-Shu & Meng, Wen-Wen & He, Xiao-Yang & Zhang, Yun', 1],
    ['Guo, Ji-Shu & Meng, Wen-Wen & Kociolek, John Patrick', 1],
    ['Levkov, Zlatko & Williams, David M.', 3],
    ['Silva, Weliton Jose da & Jahn, Regine', 11],
    ['Solak, Cüneyt Nadir & Balkis-Ozdelice, Neslihan & Yilmaz, Elif', 2],
    ['Stone, Jeffery R. & Wilson, Mallory C. & Jovanovska, Elena', 5],
    ['Yuan, Li & Liu, Bing & Rioual, Patrick & Yi, Man-Qi & Zheng, Yan', 2],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=54)',
    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);