function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allgén, C. A.', 3],
    ['Balsamo, Maria', 4],
    ['Bastian, Henry Charleton', 1],
    ['Chu, Mengdi & Hao, Yingdong & Huang, Mian', 2],
    ['Cidreira, Gabriel & Pinheiro-Junior, Eraldo P. & Venekey, Virág', 3],
    ['Datta, Tridip Kumar & Miljutin, Dmitry M.', 4],
    ['Gagarin, Vladimir G.', 2],
    ['Gusakov, Vladimir A. & Gagarin, Vladimir G.', 1],
    ['Huang, Mian & Shi, Benze & Wang, Chunguang & Xu, Kuidong', 2],
    ['Huang, Yong & Xu, Kuidong', 3],
    ['Khudhir, Manda & Hodda, Mike & Nicholas, Evelyn', 13],
    ['Lu, Yang & Sui, Xinxin & Huang, Yong', 2],
    ['Semprucci, Federica & Burattini, Sabrina', 4],
    ['Shahina, F. & Nasira, K. & Firoza, K. & Erum, Y. I.', 2],
    ['Tchesunov, Alexei V.', 4],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=52)',
    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);