function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Desutter-Grandcolas, Laure', 1],
    ['Gu, J. X. & Dai, L. & Huang, J. H.', 1],
    ['He, Zhixin & Wang, Ning & Huang, Huateng & Ma, Libin', 2],
    ['He, Zhixin & Zhang, Tao & Ma, Libin', 10],
    ['Hollier, John & Bruckner, Harald & Heads, Sam W.', 12],
    ['Holuša, Jaroslav & Kočárek, Petr & Vlk, Robert & Marhoul, Pavel', 1],
    ['Kim, Tae-Woo & Puskás, Gellért', 1],
    ['Li, Kai & He, Zhuqing & Liu, Xianwei', 1],
    ['Liu, Hao-Yu & Shi, Fu-Ming', 2],
    ['Monnerat C. & Thorens P. & Walter T. & Gonseth Y.', 3],
    ['Sakenin, H. & Samin, N. & Imani, S. & Rastegari, J.', 1],
    ['Skejo, Josip & Rebrina, Fran & Szövényi, Gergely', 2],
    ['Wang, Rui & Yuan, Wei & Zheng, Yan-Na & Gu, Jun-Jie & Ma, Li-Bin', 2],
    ['Yong, Sheyla & Perez-Gelabert, Daniel E.', 2],
    ['Yuan, Wei & Zheng, Yan-Na & Ma, Li-Bin & Gu, Jun-Jie', 2],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=47)',
    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);