function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arimoto, Kôichi & Suzuki, Wataru', 5],
    ['Etzler, Frank E.', 4],
    ['Ghahari, Hassan & Packova, Gabriela & Platia, Giuseppe', 1],
    ['Han, Taeman & Park, Haechul & Lee, Youngbo & Kim, Namjeong', 3],
    ['Németh, T. & Platia, G.', 1],
    ['Platia, Giuseppe & Ghahari, Hassan', 1],
    ['Prosvirov, Alexander S. & Efimov, Dmitry A.', 1],
    ['Webster, Reginald P. & Webster, Vincent L.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=18)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);