function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cruz Da Silva, Estevam L. & Gibbons, Anne & Sierwald, Petra', 2],
    ['D. MORITZ WAGNER', 1],
    ['Dean, David Allen', 5],
    ['Deltshev, Christo & Komnenov, Marjan & Blagoev, Gergin', 2],
    ['Fomichev, A. A.', 1],
    ['Jäger, Peter', 1],
    ['Konrad Thaler', 1],
    ['Norma-Rashid, Y. & Li, Daiqin', 1],
    ['Ono, Hirotsugu', 1],
    ['Paschetta, Mauro & Christille, Claretta & Marguerettaz, Fabio', 1],
    ['Tanikawa, Akio', 3],
    ['Tanikawa, Akio & Miyashita, Tadashi', 2],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 1],
    ['Trilikauskas, L. A.', 1],
    ['Vink, Cor J. & Dupérré, Nadine', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=24)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);