function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Borges, Paulo A. V. & Gaspar, Clara', 2],
    ['Castro-Huertas, Valentina & Minghetti, Eugenia', 1],
    ['Dellapé, Pablo Matías & Cheli, Germán Horacio', 2],
    ['Gao, Cuiqing & Xiao, Shiya & Kondorosy, Elod', 5],
    ['Ghahari, Hassan & Moulet, Pierre', 6],
    ['Henry, Thomas & Dellapé, Pablo', 4],
    ['Hollier, John & Kunz, Gernot & Blanc, Mickaël', 1],
    ['Linnavuori, Rauno E.', 19],
    ['Matocq, Armand & Azar, Dany', 1],
    ['Perez-Gelabert, Daniel E.', 1],
    ['Putshkov, Pavel V. & Pluot-Sigwalt, Dominique', 1],
    ['Sahlberg, Reinhold Ferdinand', 1],
    ['Sakenin, H. & Samin, N. & Rastegari, J. & Havaskary, M.', 3],
    ['Usinger, Robert L.', 2],
    ['Yazici, Gülten & Yildirim, Erol & Moulet, Pierre', 6],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=57)',
    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);