function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Dick, Matthew H. & Grischenko, Andrei V. & Mawatari, Shunsuke F.', 2],
    ['D’Hondt, J. - L.', 1],
    ['Gerovasileiou, Vasilis & Rosso, Antonietta', 4],
    ['Grischenko, Andrei V. & Dick, Matthew H. & Mawatari, Shunsuke F.', 1],
    ['López-Gappa, Juan & Liuzzi, María G. & Castro, Karen L.', 1],
    ['McCuller, M. I. & Carlton, J. T. & Geller, J. B.', 1],
    ['Tasso, Vicente & El Haddad, Mustapha & Assadi, Carolina', 1],
    ['Taylor, Paul D. & Tan, Shau-Hwai Aileen', 1],
    ['Vieira, Leandro M & Winston, Judith Ellen', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=21)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);