function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aistleitner, E.', 1],
    ['Arellano-Covarrubias, Arturo & Luis-Martínez, Armando', 2],
    ['Callaghan, Curtis John & Trujano-Ortega, Marysol', 3],
    ['Dias, Fernando Maia Silva & Dolibaina, Diego Rodrigo', 3],
    ['Freitas, André V. L.', 4],
    ['HALL, JASON P. W. & CALLAGHAN, CURTIS J.', 5],
    ['Hall, Jason P. W.', 2],
    ['Irungbam, Jatishwor Singh & Meitei, Laishram Ricky', 3],
    ['Jong, Rienk De', 2],
    ['Nielsen, Gregory J. & Kaminski, Lucas A.', 7],
    ['Salazar E, Julián A. & Constantino, Luis M. & Rodríguez, Gabriel', 23],
    ['Santos, Wildio Ikaro Da Graça & Dolibaina, Diego Rodrigo', 17],
    ['Trujano-Ortega, Marysol & Garcia-Vazquez, Uri Omar', 2],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 2],
    ['Zhang, Jing & Shen, Jinhui & Cong, Qian & Grishin, Nick V.', 2],
    ['Other (17)', 17]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=95)',
    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);