function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Agnarsson, Ingi & LeQuier, Stephanie M. & Kuntner, Matjaz', 1],
    ['Al-Khazali, Azhar Mohammed & Kachel, Hamid Saeid', 2],
    ['Biswas, B. & Majumder, S. C.', 4],
    ['Candek, Klemen & Gregoric, Matjaz & Kostanjsek, Rok', 2],
    ['Dean, David Allen', 4],
    ['Deltshev, Christo & Komnenov, Marjan & Blagoev, Gergin', 2],
    ['Jäger, Peter', 1],
    ['Lucas, Pierre-Hippolyte', 1],
    ['Martins, Pedro H. & Santos, Adalberto J.', 1],
    ['Ponomarev, A. V. & Bragina, T. M. & Shmatko, V. Yu.', 2],
    ['Tan, Ji', 1],
    ['Tang, Jiaxin & Liang, Wei & Shi, Haitao & Gao, Caixia', 1],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 1],
    ['Thorell, Tord Tamerlan Teodor', 1],
    ['Wang, Cheng & Gan, Jiahui & Mi, Xiaoqi', 4],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=32)',
    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);