function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anselmo, Luca', 1],
    ['Cadena-Castañeda, Oscar J. & Díaz, Carlos Julio Arango', 1],
    ['Della Rocca, Francesca & Stefanelli, Silvia & Cardarelli, Elisa', 2],
    ['Deng, Wei-An & Zheng, Zhe-Min & Li, Xiao-Dong & Lin, Min-Ping', 10],
    ['Ding, Jian-Hua & Wen, Ting-Chi & Wu, Xiao-Min', 1],
    ['Ding, Wen-Jing & Ding, Jian-Hua & Zhang, Hai-Jun', 1],
    ['Gao, Guang-Zeng & Liu, Peng-Yuan & Yin, Zhan', 1],
    ['Giuliano, Davide', 3],
    ['Holuša, Jaroslav & Kočárek, Petr & Vlk, Robert & Marhoul, Pavel', 3],
    ['Kim, Tae-Woo & Puskás, Gellért', 2],
    ['Monnerat C. & Thorens P. & Walter T. & Gonseth Y.', 7],
    ['Skejo, Josip & Rebrina, Fran & Buzzetti, Filippo Maria', 5],
    ['Skejo, Josip & Rebrina, Fran & Szövényi, Gergely', 10],
    ['Storozhenko, Sergey Yu.', 6],
    ['Storozhenko, Sergey Yu. & Dawwrueng, Pattarawich', 3],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=62)',
    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);