function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ardeshir, Fariba', 7],
    ['Canestrini, G. & Fanzago, F.', 1],
    ['Cunliffe, Frederick', 1],
    ['Ebrahimi, Najmeh & Noei, Javad', 6],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 2],
    ['Latreille, Pierre André', 1],
    ['Ma, Min & Li, Sheng-Cai & Fan, Qing-Hai', 2],
    ['Megnin, J. P.', 1],
    ['Reeves, Will K. & Durden, Lance A. & Ritzi, Christopher M.', 1],
    ['Salarzehi, Safoura', 1],
    ['Salarzehi, Safoura & Hajizadeh, Jalil & Hakimitabar, Masoud', 7],
    ['Salarzehi, Safoura & Hajizadeh, Jalil & Ueckermann, Edward A.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=32)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);